Task: Answer the MCQ question.
Query: Which compound exhibits a -0.238\% human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: O=C(CCNC(=O)c1ccccc1Cl)NCc1ccco1
b: Cc1ccc(S(=O)(=O)N2CCN(C(=O)COC(=O)/C=C/c3ccccc3[N+](=O)[O-])CC2)c(C)c1
Answer: a. O=C(CCNC(=O)c1ccccc1Cl)NCc1ccco1
{#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(CCNC(=O)c1ccccc1Cl)NCc1ccco1
O=C(CCNC(=O)c1ccccc1Cl)NCc1ccco1
2-chloro-N-[3-(furan-2-ylmethylamino)-3-oxopropyl]benzamide