Select the most appropriate word to fill in the blank.
The government is making air bags ______ for front seat passengers in all cars.

Correct option is A

The correct option to fill in the blank is (a) compulsory.
Compulsory means something that is required by law or a rule; obligatory. (अनिवार्य)
Example: Wearing seat belts is compulsory in most countries.
Explain why other options are incorrect:
· (b) Suggested – recommended but not required (सुझावित)
· (c) Temporary – lasting for only a limited period (अस्थायी)
· (d) Registered – officially recorded (पंजीकृत)