The best answer is C) Heidi has piano lessons every Friday at 6 p.m.
How about a history project on the Mayflower?
It is the ship that carried the Pilgrims to the New World.
You would get to build a model ship, and you would need to put together display telling how the Mayflower helped the Pilgrims across the ocean.
An independent clause is a sentence or part of one that can stand alone.
So I have a feeling that the first one is correct as "My sister and I love to cook" and "we spend hours cooking together" can both stand alone yet are joined by a semicolon.
I hope this has helped
