Multiple choice Select the CORRECT set comprising only the synthetic auxins. IAA and NAA IAA and 2,4-D NAA and 2,4,5-T NAA and Zeatin IAA and Zeatin Reveal answer Fill a bubble to check yourself C Correct answer Explanation 1-Naphthaleneacetic acid (NAA) and 2,4,5-trichlorophenoxyacetic acid (2,4,5-T), both are synthetic auxins.