Task: Answer the multiple choice question.
Question: Which drug has a 7.744\% 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, or d without using any other words.
Options:
[a] CCN1CC=C2C(C#N)=C(N)C(C#N)(C#N)[C@H](c3ccoc3)[C@H]2C1
[b] COc1ccccc1/C=C1\SC(=S)N(Nc2nc(C)cc(C)n2)C1=O
[c] Cc1nc2c(o1)CCc1ccccc1C2O
[d] CCOCCCNC(=O)C(Cc1ccccc1)NC(=O)c1ccco1
Answer: a. CCN1CC=C2C(C#N)=C(N)C(C#N)(C#N)[C@H](c3ccoc3)[C@H]2C1
{#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#}
CCN1CC=C2C(C#N)=C(N)C(C#N)(C#N)[C@H](c3ccoc3)[C@H]2C1
CCN1CC=C2C(C#N)=C(N)C(C#N)(C#N)[C@H](c3ccoc3)[C@H]2C1
(8R,8aR)-6-amino-2-ethyl-8-(furan-3-yl)-1,3,8,8a-tetrahydroisoquinoline-5,7,7-tricarbonitrile