Answer:
I think the sentence is fine. But not 100 % sure. So sorry that I couldn't be more helpful.
The correct answer should be a. chronological order
Chronological order means that things occurred in a certain sequence in regards to the times of their occurrence. That means that sequence is very important because it shows the order in which the events happened.
The answer is false.
Although an infinitive phrase shares something in common with a prepositional phrase in the sense that it starts with the preposition "to", they do not have the same function.
Their forms are also different:
While infinitive phrases are made by the preposition "to" and followed by a verb in infinitive form, prepositional phrases are made of any preposition and followed by a noun or a pronoun.
Prepositional phrases indicate places, times, reasons, etc. and can be placed at the end of the sentence or at the beginning followed by a comma. Infinitive phrases can also be placed at the beginning of a sentence followed by a comma and at the end, but it can also be placed in the middle and it always expresses a purpose or a reason.
Prepositions have a broader meaning, as they can talk about time periods, places and agents.