Choose the one that best expresses the meaning: To smell a rat

Smell a rat (idiom):
English Meaning - To recognize that something is not as it appears to be or that something dishonest is happening.
Bangla Meaning - অন্যায়ের বা অপকর্মের গন্ধ পাওয়া।

Example Sentences:
- He's been working late with her every night this week - I smell a rat!
- When I got an e-mail asking for my password, I should have smelled a rat.

Source: Cambridge Dictionary.