Bunuel
Bill Gates had originally rejected the idea of a dedicated browser, but in 1997 on hearing that the Netscape browser had demonstrated the potential to make Windows obsolete, he invested heavily in the development of the browser.
A. Bill Gates had originally rejected the idea of a dedicated browser, but in 1997 on hearing that the Netscape browser had demonstrated the potential to make Windows obsolete, he
B. Even though Bill Gates originally rejected the idea of a dedicated browser, in 1997 on hearing that the Netscape browser demonstrated the potential to make Windows obsolete,
C. Even though Bill Gates originally rejected the idea of a dedicated browser, but in 1997 after hearing that the Netscape browser had demonstrated the potential to make Windows obsolete, he
D. Bill Gates originally rejected the idea of a dedicated browser, but in 1997 on hearing that the Netscape browser had demonstrated the potential to make Windows obsolete, he
E. Bill Gates originally rejecting the idea of a dedicated browser, but in 1997 on hearing that the Netscape browser had demonstrated the potential to make Windows obsolete,
A.
Bill Gates had originally rejected the idea of a dedicated browser, but in 1997 on hearing that the Netscape browser had demonstrated the potential to make Windows obsolete, he invested heavily in the development of the browser.
The use of "had" is unnecessary, because the context indicates that "Bill Gates rejected" the idea before "Netscape demonstrated..."
B.
Even though Bill Gates originally rejected the idea of a dedicated browser, in 1997 on hearing that the Netscape browser demonstrated the potential to make Windows obsolete, invested heavily in the development of the browser.
In the sentence after the second ",", the subject is missing
C.
Even though Bill Gates originally rejected the idea of a dedicated browser, but in 1997 after hearing that the Netscape browser had demonstrated the potential to make Windows obsolete, he invested heavily in the development of the browser.
"even though" and "but" in the same sentence are incorrect. We need to use either of the two
D.
Bill Gates originally rejected the idea of a dedicated browser, but in 1997 on hearing that the Netscape browser had demonstrated the potential to make Windows obsolete, he invested heavily in the development of the browser.
Correct! Here, we require "had demonstrated", because we do not know from context if "Netscape demonstrated" in 1997, or before that. "Had" indicates that "Netscape demonstrated" before 1997 (Even though Bill Gates heard about that in 1997)
E.
Bill Gates originally rejecting the idea of a dedicated browser, but in 1997 on hearing that the Netscape browser had demonstrated the potential to make Windows obsolete, invested heavily in the development of the browser.
This option would have been a considerable answer choice (and still incorrect because of the second part) had it been something like "Bill Gates
, originally rejecting the idea of a dedicated browser,". But since we do not have a comma, "rejecting" is acting as a verb and V+ing does not make sense in the context (addition of a comma would make
rejecting a V+ing modifier)