Task: Answer the MCQ question.
Query: Which drug exhibits a 1.675\% 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. NNc1ccc(Cl)c(C(=O)O)c1
b. CCN(Cc1ccncc1)C(=O)CCc1nnc(CCC2CCCCC2)o1
c. O=C1CCc2cc(S(=O)(=O)NC(Cc3ccccc3)C(=O)NCC3CCCO3)ccc2N1
d. COC(=O)C1=C(C)N(CCc2ccccc2)C(=O)C1
Answer: b. CCN(Cc1ccncc1)C(=O)CCc1nnc(CCC2CCCCC2)o1
{#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#}
CCN(Cc1ccncc1)C(=O)CCc1nnc(CCC2CCCCC2)o1
CCN(Cc1ccncc1)C(=O)CCc1nnc(CCC2CCCCC2)o1
3-[5-(2-cyclohexylethyl)-1,3,4-oxadiazol-2-yl]-N-ethyl-N-(pyridin-4-ylmethyl)propanamide