Task: Answer the multiple choice question.
Query: Which drug exhibits a 18.172\% 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.) Cc1c(CC(=O)N[C@@H](C)C(=O)O)c(=O)oc2cc3occ(-c4ccccc4)c3cc12
b.) O=c1n(Cc2ccccc2)nc2n1-c1ccccc1SC2
c.) CC(=O)Oc1ccc(C(=O)[C@H]2[C@H]3C(=O)N(c4ccc(C)cc4)C(=O)[C@H]3[C@@H]3C=CC=NN32)cc1
d.) CCOC(=O)C1=C(C)Nc2nc(SCc3cccnc3)nn2C1c1ccc(OC)cc1
Answer: a. Cc1c(CC(=O)N[C@@H](C)C(=O)O)c(=O)oc2cc3occ(-c4ccccc4)c3cc12
{#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#}
Cc1c(CC(=O)N[C@@H](C)C(=O)O)c(=O)oc2cc3occ(-c4ccccc4)c3cc12
Cc1c(CC(=O)N[C@@H](C)C(=O)O)c(=O)oc2cc3occ(-c4ccccc4)c3cc12
(2S)-2-[[2-(5-methyl-7-oxo-3-phenylfuro[3,2-g]chromen-6-yl)acetyl]amino]propanoic acid