Genuinely
Carefully
Secretly
Somewhat
Answer is Right!
Answer is Wrong!
The correct answer is B. Carefully.
Cautiously means in a careful and prudent way, in order to avoid danger or risk.
Genuinely means in a sincere and honest way.
Secretly means in a way that is not known to others.
Somewhat means to a certain degree or extent.
Of the above options, only carefully is a synonym of cautiously.