Question

they stood frozen in horror, staring right at me.
in the sentence above, horror has the same or almost the same meaning as:
confusion
fear
serenity
joy

Explanation:

"Horror" means intense fear or dread. "Confusion" means being unclear or mixed - up. "Serenity" means calmness. "Joy" means happiness. "Fear" is the closest in meaning to "horror" as both relate to a sense of being afraid.

Answer:

B. fear