Short note on; salvery system​

Slavery is a system of stratification in which one person owns another, as he or she would own property, and exploits the slave's labor for economic gain. Slaves are one of the lowest categories in any stratification system, as they possess virtually no power or wealth of their own.

what are the choices? the multiple choices?

i will answer in the comments after the choices have been said.

giant impact theory - the moon was formed from the collision between earth and another mars-sized body.

colliding planetesimals hypothesis - the moon was formed from the same cloud of material as earth.

capture hypothesis - the moon was locked into orbit by earths gravity as it was passing by it.

accretion hypothesis - the moon was formed from collisions and combining of planetesimals.

i think this is right, if not and you know better let me know.