When do you use por or

plz i am really confused with this

When you use "por" or "para" your saying the word "for" so for example
enlgish: I need to go for a game
spanish:yo nesicito ir para un juego
so technically you use it when the sentence has the word "for" or the word is needed

You use it for when saying the word "for"

Well which ever one has the hour hand closest to the 8 and then which other one is 2 ticks away from the 50

The answer is a but you could also use c if you want