Which is not referred in the text?

Thông tin: 

In the 1960s, computers began to be used widely in industry for many purposes. ⇒ Đáp án D

In the 1980s, personal computers became popular for many tasks, including book-keeping, writing and printing documents, calculating forecasts and other repetitive mathematical tasks. ⇒ Đáp án B

s computers have become less expensive, they have been used extensively in the creative arts as well. Sound, pictures, and videos are now created and edited by computers. They have also been used for entertainment, ... ⇒ Đáp án A

Vậy đáp án không được đề cập đến là C. agriculture