How many prepositional phrases are in the following sentence? I was able to fix the problem with my dryer today, which saved me a $150 service call.
a. One: "to fix"
C. One: "with my dryer"
b. Two: "to fix" and "with my dryer"
d. none

C. One: "with my dryer"

Explanation:

Prepositional phrase is a group of words that starts with a preposition, and, besides it, contains a noun or a pronoun (at three o'clock, on the table, with all my heart, under the bed etc.)

Now, "with my dryer" seems like a no-brainer, the only question is "Is it the only prepositional phrase?"

Some might identify "to fix" as the other phrase. However, although it starts with "to" it doesn't function as a preposition here, it only serves to build an infinitive. Additionally, "fix" is a verb, not a noun nor a pronoun, so this can't be regarded as prepositional phrase by any means.

the group received an extra pound of butter for christmas.

the annex was delighted to hear that we'll all be receiving an extra quarter pound of butter for christmas.