Point out the correct sentences:
(a) Are you sure for Jaya's honesty ?
(b) Water is composed of oxygen and hydrogen.
(c) Officials must do their best to comply to the regulations.
(d) We were tired of walking so sat under a huge mango tree.
Answer options:

The correct answer is Option B ((b) and (d)).

Key Points:
• Fixed Prepositions governing adjectives and verbs.
• Sentence (b) is correct: 'Composed' takes the fixed preposition 'of' ('composed of oxygen and hydrogen').
• Sentence (d) is correct: 'Tired' takes 'of' ('tired of walking').
• Sentence (a) is wrong: 'Sure' takes 'of' or 'about', not 'for' ('sure of Jaya's honesty').
• Sentence (c) is wrong: 'Comply' takes the fixed preposition 'with', not 'to' ('comply with the regulations').
• Key Takeaway: Use 'composed of', 'tired of', 'sure of', and 'comply with'.