The answer is option is (D) Only I and II.
Plants grow more as a result of hormones. Due to an uneven distribution of plant hormones throughout the stems and roots, certain parts of the plant grow in a specific direction.
Plant hormones come in a wide variety of forms. They serve a specific purpose in horticulture and agriculture.
The first class of plant hormones to be identified were auxins. Their primary purpose is to aid in plant growth, and auxin encourages the lengthening of plant cells. One of the main locations where auxin is produced in plants is the apical meristem. All other plant parts, including the stem, leaves, and flowers, originate from the apical meristem.
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