Had he known more about the internet,...

Câu hỏi: Had he known more about the internet, he would have invested in some computer companies.

A Knowing about the internet helped him invest in some computer companies.

B Knowing about the internet, he would have invested in some computer companies.

C  He would have invested in some computer companies without his knowledge of the internet.

D  He did not know much about the internet and he did not invest in any computer companies.