The circulatory system is also known as the system.
a-cardiovascular
b-arterial
c-central nervous
d-venal

cardiovaculaur

Explanation:

how to know you're in love with someone you've just started getting to know can be a bit tricky because — feelings aside — they are technically still a stranger to you. although you might feel the urge to dive in and start professing your undying love for them asap, it's important to remember that it can be easy to confuse feelings of immense attraction with actual love.

when you rub, you also apply pressure, that pressure can urge the poop to come out. i think that when your rubbing, you also might be slightly breaking it up and that can further fill the stomach.