A. Christa chose to write a literary critique of the novel <em>Oliver Twist</em>.
An infinitive phrase will include the word “to” in addition to a verb. For instance, “to run,” “to sleep,” and “to laugh” are all infinitives. If the word “to” is followed by a noun, “to” would be a preposition. And, an object is the recipient of the action/verb. With that in mind, in Option A we can see that “to write” is receiving the action “chose,” which makes “to write” a direct object.
The only sentence here with an infinitive phrase is the first one, and the infinitive phrase there is 'to write'. You ask the question - What did Christa choose? in order to find the object of that sentence, and the answer is 'to write'.
The others don't make any sense and you could do the process of elimination so you would eliminate lesser and few so then your left with the words less and fewer but in this case fewer makes the most sense.
