Correct option is D
Correct spelling is “Flowers” which is given in option (d).
Meanings of all corrected options-
• Pesticides: Chemical substances used to kill or control pests, such as insects or weeds, to protect crops or property.
• Bloom: The process of flowering or the state of having flowers; also, a mass of flowers on a plant.
• Refused: To decline or reject something or someone, often as a result of a decision or choice not to accept.
• Flowers: The reproductive organs of a plant, often colorful and fragrant, which typically develop into fruits and seeds; also used to refer to the whole plant structure with flowers.