I went to the buffet six times, and I still saved room for dessert.

subordination
coordination
religious
secular

my answer coordination

Right.

Actually, the correct answer is "coordination."

To determine the answer, let's first understand the meaning of each term:
- Subordination refers to a hierarchical relationship where one element in a sentence is dependent on another element.
- Coordination refers to a relationship where two or more elements in a sentence are equal and independent.
- Religious and secular are unrelated to sentence structure and don't apply in this context.

In the given sentence, the subphrase "and I still saved room for dessert" is joined with the main sentence "I went to the buffet six times" using the coordinating conjunction "and." This conjunction shows a coordination relationship because it combines two independent clauses (sentences) of equal importance.

Hence, the correct answer is coordination.