Problem statement: Answer the multiple choice question.
Question: Which drug has a 18.550\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
[a] C=CCNc1ncnc2c1ncn2C1OC(CO)C(O)C1O
[b] Cc1c(NC(=O)C(C)OC(=O)c2cccs2)c(=O)n(-c2ccccc2)n1C
[c] Cc1ccc(-n2c(C)nn(CC3CC3)c2=O)cc1
Answer: a. C=CCNc1ncnc2c1ncn2C1OC(CO)C(O)C1O
{#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#}
C=CCNc1ncnc2c1ncn2C1OC(CO)C(O)C1O
C=CCNc1ncnc2c1ncn2C1OC(CO)C(O)C1O
2-(hydroxymethyl)-5-[6-(prop-2-enylamino)purin-9-yl]oxolane-3,4-diol