Which of the following is not true about prepositional phrases
a. it ends whith preposition
b. it contains noun or pronoun and its modifiers
c. it can have a compound object of the prepositional phrase
d. a sentence cancontain more than one prepositional phrase.

a. it ends whith preposition

True about prepositional phrases:

b. it contains noun or pronoun and its modifiers
c. it can have a compound object of the prepositional phrase
d. a sentence can contain more than one prepositional phrase.

Example:
In the given statement, "The Caribbean sea is a great location for deep-sea fishing." The phrase "a great location for deep-sea fishing" is the adjective phrase of the sentence.

Phrases are group of words that doesn't have a complete thought unlike clauses that can stand alone since it has a subject and predicate whereas a phrase doesn't.
An adjective phrase is one type of phrase to describe a noun or pronoun subject in a sentence. Also is adverb clause.