The second one. Cody and Aleena are the antecedents and <em>their</em> is the pronoun referring back to them.
B.) Garden
this is because "on" is one of many words that are commonly in prepositions. Then to find the object of the preposition, you have to ask yourself, "on {or insert whatever your word is here} what", because the object of your preposition is the subject of the preposition. :)
I hope that makes sense!
Small Business
Explanation:
There's a lot of debate on why we should and shouldn't raise the minimum wage. Off the top of my head, I would say the reason not to raise the minimum wage is that it could affect small business owners. Basically, smaller businesses will be forced to pay their employees more money. Obviously that will hurt the owner financially and could ultimately lead the business to bankruptcy.
He thinks Odysseus is ungrateful.