In which sentence are the words in bold an infinitive

What does the word " yeomanry" mean? ♡

Read the excerpt from "how i learned english.” and that was important, as important as joe barone asking me how i was through his tears, picking me up and dusting me off with hands like swatters, what does the imagery in the excerpt best readers picture? the awful stinging sensation of being dusted off the quick slapping motion of joe’s hands how roughly the speaker is pulled off the ground how loud and hard joe is laughing

Which group or words is not a phrase? a.) leaving behind the dog b.) because she smiled at me c.) smashing into a fence d.) before the first test e.) pushing the sofa