The sentence below contains one or more errors. Which answer shows the BEST way to correct the error(s)?

Because ladybugs are often seen crawling.

A. Because, ladybugs are often seen crawling.
B. Because ladybugs are often seen crawling, it's hard to remember that they can fly.
C. Because ladybugs are often seen crawling; it's hard to remember that they can fly.
D. Because ladybugs are often seen crawling it's hard to remember that they can fly.

Please select the best answer from the choices provided