A. Energetic
B. Observant
C. Intelligent
D. Watchful
✅ The correct answer is option D.
Energetic : showing or involving great activity or vitality.
Energetic : showing or involving great activity or vitality.
Observant : quick to notice or perceive things.
Intelligent : having or showing intelligence, especially of a high level.
Watchful : watching someone or something closely; alert and vigilant.
Alert : quick to notice any unusual and potentially dangerous or difficult circumstances; vigilant.
Synonym of Alert is Watchful