Questions number 19 to 22 are based on the following text. Diana was born in 1961 as the third daughter of Edward John Spencer and his wife Ruth Burke Roche. Diana grew up in a very privileged family that had a long history of close ties with the royal family. When Diana's paternal grandfather passed away in 1975, Diana's father became the 8th Earl of Spencer and Diana gained the title of “Lady". Diana attended school at West Heath in Kent and spent short time finishing school in Switzerland. Although she was not an excellent student academically, her determined personality, caring nature, and cheerful outlook helped her through it. After returning from Switzerland, Diana rented an apartment with two friends, worked with children at the Young England Kindergarten. It was about this time that Prince Charles, in his early 30, was under increasing pressure to choose a wife. Diana's vibrancy, cheerfulness, and good family background caught the attention of Prince Charles and the two began dating during in mid-1980. It was a whirlwind romance for on February 24, 1981, Buckingham Palace officially announced the couple's engagement. At the time, Lady Diana and Prince Charles seemed truly in love and whole world was awed by what seemed like a fairy-tale romance. When did Diana get the title of “Lady”?

Question

Questions number 19 to 22 are based on the following text.

Diana was born in 1961 as the third daughter of Edward John Spencer and his wife Ruth Burke Roche. Diana grew up in a very privileged family that had a long history of close ties with the royal family. When Diana's paternal grandfather passed away in 1975, Diana's father became the 8th Earl of Spencer and Diana gained the title of “Lady".

Diana attended school at West Heath in Kent and spent short time finishing school in Switzerland. Although she was not an excellent student academically, her determined personality, caring nature, and cheerful outlook helped her through it. After returning from Switzerland, Diana rented an apartment with two friends, worked with children at the Young England Kindergarten.

It was about this time that Prince Charles, in his early 30, was under increasing pressure to choose a wife. Diana's vibrancy, cheerfulness, and good family background caught the attention of Prince Charles and the two began dating during in mid-1980. It was a whirlwind romance for on February 24, 1981, Buckingham Palace officially announced the couple's engagement. At the time, Lady Diana and Prince Charles seemed truly in love and whole world was awed by what seemed like a fairy-tale romance.

When did Diana get the title of “Lady”?