Explanation of the phrase "concerned about someone"

[Margo]

English Language Tests, Intermediate level

ESL/EFL Test #273 "When do you say this?", question 1

I say: "Are you all right?" when I am ..........

(a) concerned about someone
(b) tired with someone
(c) happy with someone

English Language Tests, Intermediate level

ESL/EFL Test #273 "When do you say this?", answer 1

I say: "Are you all right?" when I am concerned about someone.

Correct answer: (a) concerned about someone
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what does explanation?

Margo

[Mister Micawber]

.
Concerned about someone = interested in or worried about someone.
.
_________________
Canadian-American native speaker
who teaches English for a living at Mister Micawber's
ESL cafe: Interview with Mister Micawber