Select the INCORRECTLY spelt word.

Correct option is B

Option (b) Recalcitrent is the incorrectly spelt word.
• Correct spelling is: Recalcitrant - It refers to someone who is uncooperative or resistant to authority or control.
• Example: The recalcitrant student refused to follow the school's rules.
Meanings of all the other given options:
• (a) Lapse: A temporary failure of concentration, memory, or judgment.
• (c) Acquit: To free someone from a criminal charge by a verdict of not guilty.
• (d) Mourning: The expression of deep sorrow for someone who has died.