Need help ASAP! Which is the main theme of the passage?

A) Mountain climbing takes a lot of willpower.
B) We do not know what we have until we lose it.
C) Overcoming your fears is easy and enjoyable.
D) Support from others can help us do anything.

Which statement best describes the effect of the metaphor on the excerpt's meaning? o a. it compares the sloshing liquid to a river of water able to push apart the sidewalk o b. it makes the frozen crystals seem like friends to the city to contrast with what a deceitful foe they are. o c. it compares the frozen crystals to delicately lacy snowflakes having arn unexpected strength o d. it likens h20 molecules to hexagonal crystals, which are actually larger than people imagine.