Problem statement: Answer the multiple-choice question.
Query: Which drug exhibits a 6.758\% 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) CCOC(=O)CCCCC(=O)c1[nH]c(=O)[nH]c1Cn1cnc2ccccc21
(b) Cc1ccnc(SCc2cc(=O)c(OC(=O)c3cccs3)co2)n1
(c) Cc1ccc(NC(=O)NC(=O)CN2C(=O)NC3(CCCCCCC3)C2=O)c(C)c1
(d) CCOC(=O)c1c(S(=O)(=O)NCC(=O)N2CCN(c3ccccc3)CC2)c(C)n(C)c1C
Answer: d. CCOC(=O)c1c(S(=O)(=O)NCC(=O)N2CCN(c3ccccc3)CC2)c(C)n(C)c1C
{#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#}
ethyl 1,2,5-trimethyl-4-[[2-oxo-2-(4-phenylpiperazin-1-yl)ethyl]sulfamoyl]pyrrole-3-carboxylate