How to translate suck it up in this sentence?

[Xavierka]

English Language Tests, Intermediate level

ESL/EFL Test #384 "English Slang Idioms (115)", question 9

He disliked people that whined about petty day-to-day problems that everyone in America faced. He felt that those who whined needed to ......... it up and handle the issues without bothering him.

(a) run
(b) cry
(c) suck
(d) plump

English Language Tests, Intermediate level

ESL/EFL Test #384 "English Slang Idioms (115)", answer 9

He disliked people that whined about petty day-to-day problems that everyone in America faced. He felt that those who whined needed to suck it up and handle the issues without bothering him.

Correct answer: (c) suck

Your answer was: incorrect
He disliked people that whined about petty day-to-day problems that everyone in America faced. He felt that those who whined needed to plump it up and handle the issues without bothering him.
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How to translate suck it up in this sentence?

[Conchita]

'Suck it up' has the sense of 'put up with someone/something'. In other words, it means to accept someone/something, even if they are unpleasant.