Problem statement: Answer the multiple choice question.
Query: Which drug exhibits a 16.331\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
[a] CC1(C)Oc2ccc3ccc(=O)oc3c2[C@@H](O)[C@@H]1O
[b] COc1ccc(NC(=O)c2cc(S(=O)(=O)N3CCc4ccccc43)cn2C)c(OC)c1
[c] CC(C)Oc1ccc(S(=O)(=O)N2CCCCC2)cc1NC(=O)C1CSC2(C)CCC(=O)N12
[d] O=C(NC(=S)Nc1cc(-c2nc3ccccc3[nH]2)ccc1Cl)c1ccc2c(c1)OCO2
Answer: a. CC1(C)Oc2ccc3ccc(=O)oc3c2[C@@H](O)[C@@H]1O
{#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#}
CC1(C)Oc2ccc3ccc(=O)oc3c2[C@@H](O)[C@@H]1O
CC1(C)Oc2ccc3ccc(=O)oc3c2[C@@H](O)[C@@H]1O
(9S,10R)-9,10-dihydroxy-8,8-dimethyl-9,10-dihydropyrano[2,3-f]chromen-2-one