C. theory is the answer to your question
Answer:
7
Explanation:
There are 12 total pairs of ribs. 1-7 are attached directly to the sternum by costal cartilages, making them true pairs. 8-10 are fake pairs, which means they're attached indirectly to the sternum. And 11 and 12 and free floating ribs, meaning they aren't attached.
The answer is true as phenotype involves of having to see the organisms character and their morphological features, by this, it is trying to apply to both of the physical and psychological characteristics, making the sentence above as true.
