Answer:
True!
Step-by-step explanation:
Soap molecules form something called micelle. If you look it up, these are usually formed if something has a hydrophobic tails (water hating) and hydrophilic heads (water loving).
So essentially when you try to get the grease off of your shirt or hand, the soap hydrophobic ends interact with grease and capture it and the water interacts with the hydrophilic heads to pull the micelle out releasing the grease.