The answer is C. It's the only one that points out the that the student is contradicting herself.
Answer:
A.It takes a lot of different tools to fight disease.
B.Modern technology is an important part of the fight against disease.
D.Different types of scientists use different tools to fight disease.
Explanation:
The answer would be the first one
the appropriate arrangement and logical coherence of words in a sentence
Syntax is the arrangement of words, clauses, and phrases in a sentence
It kinda looks like abandoning patriotism