Question

answer fast... i need the answer ​

Answer 1

$\huge\boxed{ANSWER:-}$

Your answer is Option b

• option 1 is wrong because ...coronary sulcus is present between atria and helps to seperate them

• Option 3 is wrong because
• The fossa ovalis is a depression in the right atrium of the heart, at the level of the interatrial septum, the wall between right and left atrium. The fossa ovalis is the remnant of a thin fibrous sheet that covered the foramen ovale during fetal development.

• on 4 is wrong because vermiform appendix is present in abdominal canal and it is a vestigial part.

$\boxed{your\: Answer\:is\: option\:b}$