The prepositional phrase in this sentence is c. "to your sentence structure", because it is postmodifying an infinitive phrase (to bring complexity), which has the same value, in this case, as a noun phrase. Besides it is composed by a preposition (to) and a noun phrase (your sentence structure).
Option a. is a verb phrase as well as option b. In the same way, letter d. is not a prepositional phrase as it is an adjective phrase used in the comparative form.
Hello!
<span>To repeal all national penal provisions which constitute discrimination against women.
Good Lessons. =)
</span>
Carbon dioxide am i right
<span> Clarisse dies (i think). It could be that, in this world, a girl like Clarisse just can’t exist. She’s incompatible with her surroundings, so she’s not allowed to live. I don’t know all the details of her demise, or is the confusion reconciled by the end of the novel. But I can’t help but think of Clarisse when Granger discusses the thumbprint on his mind left by his grandfather. Even after her disappearance/death, Clarisse continues to affect Montag. She exists because she changed his mind, where as someone like Mildred hardly existed at all.</span>
