Read the sentence.

Before I baked the cake, I bought the ingredients, I measured them.

Choose the best correction for this sentence with a comma splice.

Before I baked the cake I bought the ingredients, I measured them.
Before I baked the cake, I bought the ingredients I measured them.
Before I baked the cake; I bought the ingredients, I measured them.
Before I baked the cake, I bought the ingredients, and I measured them.