What's the response to 'Can you expand on that?'

[Lou]

English Language Tests, Intermediate level

ESL/EFL Test #236 "Common Phrases and Respones (2)", question 3

Can you expand on that? .........

(a) Yes, I need more room.
(b) Yes, I feel we should focus on globalization more.
(c) I hope so.
(d) I'd appreciate that.

English Language Tests, Intermediate level

ESL/EFL Test #236 "Common Phrases and Respones (2)", answer 3

Can you expand on that? Yes, I feel we should focus on globalization more.

Correct answer: (b) Yes, I feel we should focus on globalization more.

Your answer was: incorrect
Can you expand on that? Yes, I need more room.
_________________________

I was cheated of my answer. My answer was letter (a) Yes I need more room but when I checked my score it came out my answered letter (b) Yes, I feel we should focus on globalization. Why is that? Is it coputers fault?

Lou

[Yankee]