As part of an experiment Lamarr is doing in behavioral psychology class, he is instructed to allow rats to explore a maze for a number of trials with no food or other type of reinforcement. When he then introduces food into the goal boxes, he finds that the rats are quickly able to find the food with few, if any, errors. Lamarr has just demonstrated proof of the phenomenon known as:

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.

rain should be the answer.

i believe the answer is: returns on investments, no wages

people who belong in upper class society would most likely get there by obtaining multiple source of income, which a certain percentage of ownership for businesses. since most of them are job creator, they would most likely get their money from profit, not wages.