The Following Sentences Form a Paragraph

Multiple Choice

The following sentences form a paragraph. Proofread them for inconsistent tense and faulty parallelism. Identify the type of each error in each sentence, or select "correct" if the sentence is free of errors.
-The flash flood starts at 3 p.m. on May 31 when the South Fork Dam burst, spilling out more than 20 million tons of water and destroys six Pennsylvania towns.

A) correct
B) inconsistent tense
C) faulty parallelism