Identify the comma error and choose the best revision.

The young project manager lacked communication skills but he was intelligent well-spoken and precise.

A. The young project manager lacked communication skills, but he was intelligent well-spoken and precise.
B. The young project manager lacked communication skills; but he was intelligent, well-spoken and precise.
C. The young project manager lacked communication skills, but he was intelligent, well-spoken, and precise.

The young project manager lacked communication skills, but he was intelligent, well-spoken, and precise

Explanation:

Comma is used to indicate break between the independent clauses. when more than two adjectives are used to qualify the noun then they must be separated by comma. For last adjective and is used but comma is avoided as and serves the purpose to separate them.

In this sentence, before but a comma used as the clause is making complete sense. In next part more than tow adjectives are used therefore first two must be separated by comma and the last one is separated by and.

Now using  these rules we see option c is the most appropriate answer

now, of course, the quality and the seasonability of these winter dreams varied, but the stuff of them remained.   they persuaded dexter several years later to pass up a business course at the state university—his father, prospering now, would have paid his way—for the precarious advantage of attending an older and more famous university in the east, where he was bothered by his scanty funds. but do not get the impression, because his winter dreams happened to be concerned at first with musings on the rich, that there was anything merely snobbish in the boy. he wanted not association with glittering things and glittering people—he wanted the glittering things themselves. often he reached out for the best without knowing why he wanted it—and sometimes he ran up against the mysterious denials and prohibitions in which life indulges.

there you go thats what we are missing