Task: Answer the MCQ question.
Question: Which drug exhibits a 13.730\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
[a] COC(=O)c1ccc(CSCC(=O)Nc2cc(OC)cc(OC)c2)o1
[b] O=C(COC(=O)c1cc([N+](=O)[O-])ccc1N1CCOCC1)c1ccc(OC(F)F)cc1OC(F)F
[c] Cc1cc(-c2ccccc2)cc(C)[n+]1Cc1ccccc1.[O-][Cl+3]([O-])([O-])[O-]
[d] CC1=C(/C=C/C(C)=N\NC(=O)c2ccncc2)C(C)(C)CCC1
Answer: b. O=C(COC(=O)c1cc([N+](=O)[O-])ccc1N1CCOCC1)c1ccc(OC(F)F)cc1OC(F)F
{#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#}
O=C(COC(=O)c1cc([N+](=O)[O-])ccc1N1CCOCC1)c1ccc(OC(F)F)cc1OC(F)F
O=C(COC(=O)c1cc([N+](=O)[O-])ccc1N1CCOCC1)c1ccc(OC(F)F)cc1OC(F)F
[2-[2,4-bis(difluoromethoxy)phenyl]-2-oxoethyl] 2-morpholin-4-yl-5-nitrobenzoate