What does 'regarded' mean in this context?

[Micha]

Test No. incompl/inter-80 "Company Decisions", question 6

An effective customer support system should be ......... as the nerve centre of all company communciation.

(a) regarded
(b) imagined
(c) thought
(d) dreamt

Test No. incompl/inter-80 "Company Decisions", answer 6

An effective customer support system should be regarded as the nerve centre of all company communciation.

Correct answer: (a) regarded

Your answer was: incorrect
An effective customer support system should be thought as the nerve centre of all company communciation.
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What does it mean exactly "regarded" in this context?

[Alan]

Here this means considered or looked upon or believed to be.
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