Task: Answer the multiple choice question.
Query: Which drug exhibits a 8.183\% 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 additional words.
Options:
(a) CN1CCN(C(=O)c2cnn(-c3ccccc3)c2NC(=O)c2ccc([N+](=O)[O-])cc2)CC1
(b) O=c1[nH]c(=O)c2nc3c4ccccc4c4ccccc4c3nc2[nH]1
(c) O=C(Nc1ccncc1)c1ccc(Cl)c(Cl)c1
(d) C=CCNC(=O)c1ccccc1CCc1ccccc1
(e) COc1ccccc1N(CCC#N)C(=O)CSc1ccc2c(c1)OCCO2
Answer: b. O=c1[nH]c(=O)c2nc3c4ccccc4c4ccccc4c3nc2[nH]1
{#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=c1[nH]c(=O)c2nc3c4ccccc4c4ccccc4c3nc2[nH]1
O=c1[nH]c(=O)c2nc3c4ccccc4c4ccccc4c3nc2[nH]1
10H-phenanthro[9,10-g]pteridine-11,13-dione