Problem statement: Answer the multiple choice question.
Query: Which drug exhibits a 23.492\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any other words.
Options:
a. O=C(COC(=O)C1CCC1)Nc1ccccc1Sc1ccccc1
b. O=C(CNCCO)N1N=C(c2cccs2)CC1c1cccs1
c. Cc1ccc(C)c(C(C)NC(=O)Cc2cccs2)c1
d. COC(=O)C[N+](C)(C)C/C=C\c1ccccc1.[Br-]
e. Cc1nc(-c2nc(-c3c(C(=O)NNC(=O)Nc4cccc(Cl)c4)noc3C)cs2)cs1
Answer: d. COC(=O)C[N+](C)(C)C/C=C\c1ccccc1.[Br-]
{#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#}
COC(=O)C[N+](C)(C)C/C=C\c1ccccc1.[Br-]
COC(=O)C[N+](C)(C)C/C=C\c1ccccc1.[Br-]
(2-methoxy-2-oxoethyl)-dimethyl-[(Z)-3-phenylprop-2-enyl]azanium;bromide