What change was made in the second sentence?

The holidays are just around the corner.

The holidays are just around the corner, so I need to go shopping.

A. inverted subject-verb order

B. created a compound sentence

C. inverted subject-object order

D. added a prepositional phrase

The change that was made in the second sentence is that it created a compound sentence. The correct answer is option B. The compound subject now has two independent clauses: "The holidays are just around the corner" and "I need to go shopping". The independent clauses are connected with the coordinating conjunction "so".