Given below are two statements.

Statement I: Cardiac muscle fibres require oxygen for aerobic cellular respiration.

Statement II: Coronary circulation provides oxygen to the cardiac musculature.

In light of the above statements, choose the correct answer from the options given below. 

Cardiac muscle, found in the heart, predominantly generates the ATP it needs for continuous and rhythmic contractions through aerobic cellular respiration. This reliance on aerobic metabolism is facilitated by the abundant mitochondria within cardiac muscle cells, ensuring a constant energy supply. To meet its high oxygen demand, the heart receives oxygen via the coronary circulation, a network of blood vessels that delivers oxygen-rich blood directly to the cardiac muscle. Additionally, myoglobin, present in cardiac muscle fibers, aids in oxygen storage and release, contributing to the heart's exceptional endurance and ability to sustain its vital pumping function efficiently.