What is 1+3 plz answer

こんにちは， 皆様、このサイトであまり日本語のpostを見つからなくて、もし質問があ ったら、ぜひcommentに聞いてください。 hello, i couldn't really find any posts on this site about japanese. but if you have any questions about japanese, feel free to ask me down below in the comments/replies. have fun learning !

Which leadership function is being employed in the following situation

Identify the structure of the human heart which is a muscular chamber that pumps blood out of the heart and into the circulatory system.