Task: Answer the MCQ question.
Question: Which compound exhibits a 8.114% human ether-à-go-go related gene (hERG) inhibition at 10uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a C=CCN1CC[C@]23c4c5ccc(O)c4O[C@H]2/C(=N/NC(=O)c2ccccc2)CC[C@@]3(O)[C@H]1C5
b CCCOc1ncnc2c1[nH]c1ccc(OC)cc12
c Cc1ccc(NC(=O)CN(C)S(=O)(=O)c2ccc3[nH]c(=O)oc3c2)c(C)c1
d CCCCOc1ccc(C(=O)CCN2CCOCC2)cc1.Cl
Answer: b. CCCOc1ncnc2c1[nH]c1ccc(OC)cc12
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
CCCOc1ncnc2c1[nH]c1ccc(OC)cc12
CCCOc1ncnc2c1[nH]c1ccc(OC)cc12
8-methoxy-4-propoxy-5H-pyrimido[5,4-b]indole