Question : A sentence has been broken into four parts with an error in one of the parts. Identify the part that has an error based on sentence construction:
A. He finally accomplished
B. his mission after years
C. of rigorous research
D. and hard work
Option 1: No error
Option 2: his mission after years
Option 3: of rigorous research
Option 4: and hard work
Option 5: He finally accomplished
Correct Answer: his mission after years
Solution : After years is a dependent clause. Thus, it has to be introduced with a comma