The sentence where there is a dangling modifier is the first one - A) Arriving ten minutes late, the store was closed for the night.
It is dangling because it doesn't refer to anybody - the way it is incorrectly written, it would seem that the store arrived ten minutes late, and not a person.
I will need more information to help you
D. Oscar studied Dr. Frost's article and summarized it in his own words
Fbdgdgdggdbccc BBC bcbcbcbbcncncjcjc
Conclude means to basically bring something to an end.
