Reducing agents/oxidation: This question is stressing me out!

[andreamx]

In the reaction:
A2+(aq) + B(s) --> B2+(aq) + A(s)
A. A2+ is oxidized
B. B2+ is reduced
C. B is the reducing agent
D. A is reduced
E. All of the above

I don't understand how you can differentiate between C and D. My professor told me C is the correct answer. Someone please help me out, I'm stressing way more than I should about this one single problem lol

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[InquisitiveDoc]

D is incorrect because it's not A that's being reduced. It's A2+ that is being reduced.

 

[andreamx]

Oh my goodness, that was so simple... Thank you so much! I have to pay attention to those little things.

 

[Timorito]

understandable bro i was reading it and im like andreamx is right, but then im like its simple lol