English · Vocabulary

The correct answer is 'exposed' because in the context of the sentence, 'unearthed' refers to the act of revealing or uncovering serious irregularities within the project. The other options do not accurately represent this action: 'written' suggests documentation, 'mentioned' implies a casual reference, and 'created' indicates bringing something into existence, none of which match the meaning of discovering or revealing hidden problems.

This option suggests that 'unearthed' means to have put something into written form, which is not accurate in this context.

This option implies that 'unearthed' means to have simply referred to something, which does not convey the idea of discovery or revelation necessary in this context.

This is the correct option as 'exposed' means to reveal or uncover something that was hidden or not known, which aligns perfectly with the context of discovering serious irregularities.

This option suggests that 'unearthed' means to have brought something into existence, which is not relevant in the context of revealing existing issues.