get by or get along

[police]

How is he ........ these days? I hope he is doing well.
A. Getting at
B. Getting by
C. Getting along
D. Getting up

I have no idea about which one is correct , B or C. Because their meaning is similiar to each other. Could anyone explain it to me? Which on is correct in the context.

[Textualise]

As a general enquiry, "getting on" is the best wording in the context, or "How is he doing these days?"

"Getting by" means that someone is only just managing, and is usually only used in an answer (eg. "How are you doing?" "Getting by").

"Getting up" means getting out of bed in the morning.

I hope this is helpful.

[police]

Thank you for your helo. But how about "get along"?

[liamst]

"Get along" refers to two or more people "getting along." For example:
"They are getting along well."

It means that they are being friendly to each other and not hostile.