Help me understand liquidity pool in memecoin trading

I dont fully understand the concept so pls i will ask you to reply to these hypothetical scenarios:

• the memecoin i want to trade on Bullx/Phatom has :

50k liuidity 500k Market cap

• My order will be worth 100k Usd and i will win and make a x2 of my trade,

Queetions:

1) as you see my trade size is double bigger than the liquidity pool, will i not be able to sell if I win like in this case?

2) you have always to put a size lower than the liquidity pool? So in this case a lot lower than 50k ? Maybe a 10k size is good?

3) Or when you trade on memecoin on dex exchange you have only to look at Market Cap and put a size lower than that? So in this case my size of 100k is a lot lower than the 500k Market Cap and everything will be smooth?

What is the right answer? 1 2 or 3?

Thank you 😅