The answer is 2 because its the outside number and not in the parentheses
Answer:I'm almost sure it's b or d hope this helped
Explanation:
Answer: papillary muscle
Chordae tendinae is a connective tissue that used to prevent the heart valve to be flapped away. It like a string that connected into the valve and makes it look like a kite. Papillary muscle is the part that anchoring it to the heart wall.