Why is hoda’s relocation to america described as a “roll of dice”?

hoda might not be able to adapt to life in the united states.

a. no one can predict what her future with samir would be.

b. samir might not like her after he dates her for awhile.

c. hoda might not be able to find a good job in chemistry.

When phrases like these are used, you should not take them literally because they are figures of speech. Instead, make an analogy about that phrase that is also applicable to the real situation. Since in rolling a dice, there is no chance of knowing what face you can get, it is analogous Hoda's life being unpredictable. So, I think the answer is letter A.