Take a look at the item again:
Paulie is a daredevil (A)
who enjoys skydiving, motorcycle racing, and boxing.
But (B)
won't eat raw cookie dough (C)
because he's afraid of bacteria from uncooked eggs.
You wanted to do this:
Paulie is a daredevil. Who enjoys skydiving,
motorcycle racing, and boxing. But won't eat raw cookie dough because he's
afraid of bacteria from uncooked eggs.
Adding a period after daredevil is an error. Who enjoys skydiving ... is a subordinate clause, so it cannot stand alone as a complete sentence.
You might want to review the rules.
Go back to the sentence to try again.