Task: Answer the MCQ question.
Question: Which drug exhibits a 3.138\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: CCC(Oc1ccccc1)C(=O)Nc1nnc(C(F)(F)F)s1
b: Cc1cc2c(N=NC(=O)C3CC3c3ccccc3)c(O)[nH]c2cc1Br
Answer: a. CCC(Oc1ccccc1)C(=O)Nc1nnc(C(F)(F)F)s1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_1uM#}{herg_central_at_1uM__units} {herg_central_at_1uM__names__noun}?
Constraint: You must select none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%herg_central_at_1uM%}
Answer: {%multiple_choice_result}. {SMILES#}
CCC(Oc1ccccc1)C(=O)Nc1nnc(C(F)(F)F)s1
CCC(Oc1ccccc1)C(=O)Nc1nnc(C(F)(F)F)s1
2-phenoxy-N-[5-(trifluoromethyl)-1,3,4-thiadiazol-2-yl]butanamide