Fill in the blanks choosing the correct option Indian youth is full _____ hope for the bright future of the country.

(a) of Correct! The correct collocation is 'full of' — e.g., full of hope, full of energy, full of life. 'Of' is the standard preposition used with 'full'.

(b) for Incorrect. 'Full for' is not a standard English expression.

(c) at Incorrect. 'Full at' is grammatically incorrect in this context.

(d) on Incorrect. 'Full on' is informal slang meaning 'complete' or 'intense' — not suitable here.