Correct Answer: Overt

Solution : The second option is correct.

Clandestine means secret or done in a concealed or hidden manner, and overt , on the other hand, means done openly or without any attempt at concealment.

The sentence mentions the officer being removed due to a clandestine affair, indicating that the affair was conducted in secrecy. Therefore, the opposite or antonym that would best fit in this context is overt , which means something done openly without hiding or concealing it.

The meanings of the other words are:

• Surreptitious : It refers to something done in a secretive or sneaky manner, similar to clandestine or covert actions.
• Casual : It is something that is relaxed, informal or occurs without regularity or formality.
• Amorous : That relates to romantic or loving feelings, particularly in a sexual or passionate way.

So, the right answer is overt .