Every year in spring we plant wildflower seeds in my mother's garden.

how many prepositional phrases are in the sentence above?
a. 1
b. 4
c. 3
d. 2

Which sentence includes an infinitive phrase a) jodi and marisa went to the movies again last week b) athletes who work professionally need to practice c) clothing sizes can vary from manufacturer to manufacturer d) we enjoyed the dancers, who wore grass skirts to their ankles