Which organ contains the cardiac muscle heart or bladder i need to no now

The heart.

Explanation:

"Cardiac" pertains to the heart. The heart is an organ that contains cardiac muscles (also called myocardium). Cardiac muscle is an involuntary striated type of muscle. The bladder is made up of smooth muscles, which are involuntary non-striated muscles.

Hope this helped :)

answer; /// i believe that the correct answer is (adhere to the state);

where are the choices