Answer:
Cardiac muscle.
Explanation:
Cardiac muscle is also known as heart muscle. These muscles regulate the proper working and functioning of the heart.
Cardiac muscles are involuntary muscles and show striations under the microscope. These muscles are uninucleate and connected by the intercalated disc. Cardiac muscles are branched so that each cardiac cells may attach with atleast with or four other cardiac cells.
Thus, the correct answer is option (A).
