What does this idiom mean: marking time?

[Maz]

English Idioms and Expressions, Advanced Level

ESL/EFL Test #25 "Mark Idioms", question 1

He's not really doing anything serious at the moment because he's just marking time until hen finds a proper job.

(a) waiting for the right start
(b) waiting for the easy life
(c) waiting for the right opportunity
(d) waiting for the easy start

English Idioms and Expressions, Advanced Level

ESL/EFL Test #25 "Mark Idioms", answer 1

He's not really doing anything serious at the moment because he's just waiting for the right opportunity until hen finds a proper job.

Correct answer: (c) waiting for the right opportunity
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I think it should be "until he"

Maz

[Yankee]

I think you're right.

[Torsten]

Many thanks for this. The typo will be removed.
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