Task: Answer the multiple choice question.
Query: Which compound exhibits a 2.978\% 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] C=CCNC(=O)/C(C#N)=C\c1cc(Cl)c(O)c(OCC)c1
[b] COc1cccc(C(=O)C2CCCN(Cc3cnn(C(C)C)c3)C2)c1
[c] O=C(c1ccc(-c2ccccc2)cc1)N1CCC(C(=O)N2CCCC2)CC1
[d] Cc1cccc2nc(CSc3nnnn3-c3ccccc3)cn12
[e] O=C(CCc1nc2ccccc2[nH]c1=O)OCC(=O)N1CCc2ccccc21
Answer: a. C=CCNC(=O)/C(C#N)=C\c1cc(Cl)c(O)c(OCC)c1
{#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#}
(Z)-3-(3-chloro-5-ethoxy-4-hydroxyphenyl)-2-cyano-N-prop-2-enylprop-2-enamide