Question

Which sentence uses a prepositional phrase?

A.
Lara definitely loves to paint.

B.
She painted a portrait over the weekend.

C.
Lara washed her brushes thoroughly.

D.
She had painted a winter scene last month.

Answer 1

The answer is b. The word over is a preposition, and the weekend is where she painted the portrait. Have a nice day!
Hope this helped!

Answer 2

Its B.She painted a portrait over the weekend.