Sagot :
Option C contains a run-on sentence (I would call it a comma splice).
A better way to phrase the sentence could be:
1. A giant clam grows huge; it can weigh hundreds of pounds.
2. A giant clam grows huge. It can weigh hundreds of pounds.
A better way to phrase the sentence could be:
1. A giant clam grows huge; it can weigh hundreds of pounds.
2. A giant clam grows huge. It can weigh hundreds of pounds.
The answer is C. A giant clam grows huge, it can weigh hundreds of pounds.