Problem statement: Answer the MCQ question.
Query: Which drug exhibits a 18.346\% 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. CCN1C(c2ccccc2)=C(c2ccccc2)S/C1=C\C=C1/SC(=S)N(C)C1=O
b. O=C(Nc1nnc(Cc2ccc([N+](=O)[O-])cc2)s1)Nc1ccccc1F
c. CN1C(=O)C(=Cc2ccc(N3CCOCC3)c([N+](=O)[O-])c2)C(=O)N(C)C1=O
d. Cc1cccc(OP(=O)(Nc2c(C)n(C)n(-c3ccccc3)c2=O)Oc2cccc(C)c2)c1
Answer: b. O=C(Nc1nnc(Cc2ccc([N+](=O)[O-])cc2)s1)Nc1ccccc1F
{#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(Nc1nnc(Cc2ccc([N+](=O)[O-])cc2)s1)Nc1ccccc1F
O=C(Nc1nnc(Cc2ccc([N+](=O)[O-])cc2)s1)Nc1ccccc1F
1-(2-fluorophenyl)-3-[5-[(4-nitrophenyl)methyl]-1,3,4-thiadiazol-2-yl]urea