Problem statement: Answer the multiple-choice question.
Question: Which drug exhibits a -2.856\% human ether-à-go-go related gene (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. O=C(c1cccs1)N1CCN(c2ccc(F)cc2)CC1
b. O=C(Nc1ccc(F)c([N+](=O)[O-])c1)c1ccc2c(c1)OCCO2
c. COc1cccc(/C=N/NC(=O)CNC(=O)c2ccc3c(c2)OCCO3)c1O
d. COc1ccc(OC)c(/C(O)=C/C(=O)C(=O)Nc2cc(C)cc(C)c2)c1
e. CCOC(=O)C(O)(c1ccc(NC(=S)NC(=O)c2ccc(Cl)cc2Cl)c(C)c1)C(F)(F)F
Answer: a. O=C(c1cccs1)N1CCN(c2ccc(F)cc2)CC1
{#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(c1cccs1)N1CCN(c2ccc(F)cc2)CC1
O=C(c1cccs1)N1CCN(c2ccc(F)cc2)CC1
[4-(4-fluorophenyl)piperazin-1-yl]-(thiophen-2-yl)methanone