Despite the difficulties and circumstances in which the people live, they have not abandoned science because they are certain that they are the fruit of the future, with which they will change the present to a better future.
<span>In order to vary the sentence structure, the sentence I would insert in the blank is C. Have you noticed how hard she works? The reason for this is because inserting an interrogative sentence that has a completely different structure and word order than the other two sentences works great in order to introduce some versatility into a paragraph consisting of a couple of sentences. Here, the only sentence that differs is C. which is why you should choose it. Starting three sentences in a row with the same word can be a bit dull and repetitive. </span>
Where is the answer choice?
Answer:
The answer is ineffective since it doesn't describe what the field is or what the writer specifically did in that field.