Task: Answer the MCQ question.
Query: Which compound has a -4.089\% 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 other words.
Options:
a) CCN(CC)CCOc1ncnc2c1oc1ccccc12
b) O=C(c1ccc2c(c1)OCCO2)N1CCN(c2ccc([N+](=O)[O-])cc2)CC1
c) O=C(O)CSCc1cn2cc(Cl)ccc2n1
d) COc1ccc(/C=N/n2c(C)cc(C)c(C(N)=O)c2=O)cc1
Answer: a. CCN(CC)CCOc1ncnc2c1oc1ccccc12
{#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#}
2-([1]benzofuro[3,2-d]pyrimidin-4-yloxy)-N,N-diethylethanamine