HE KNEW LITTLE ABOUT THE INTERNET AND SO HE DIDN’T INVEST INTO ANY...

51. He knew little about the Internet and so he didn’t invest into any computer company A. If had he known more about the Internet, he would have invested into some computer companies. B. Unless he had known more about the Internet, he would have invested into some computer companies. C. Has he known more about the Internet, he would have invested into some computer companies. D. Had he known more about the Internet, he would have invested into some computer companies.