It is C! Fossil A is younger than the index fossil. Hope this helps!
The antwones river would be a great answer for this because of how rivery it is
Our federal government has three parts. They are the Executive, (President and about 5,000,000 workers) Legislative<span> (Senate and House of Representatives) and</span>Judicial<span> (Supreme Court and lower Courts). The President of the United States administers the Executive Branch of our government.</span>