Task: Answer the MCQ question.
Query: Which compound exhibits a 19.423% human ether-à-go-go related gene (hERG) inhibition at 10uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a: CCNS(=O)(=O)c1ccc(OC)c(C)c1
b: COc1ccc(C2=NC(C)(C)Cc3cc(OC)c(OC)cc32)cc1
c: Cc1cc(C)n(-c2ccc(C(=O)NC3CCCCC3)cc2)n1
d: CCSc1ncnc2c1oc1ccccc12
Answer: d. CCSc1ncnc2c1oc1ccccc12
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
CCSc1ncnc2c1oc1ccccc12
CCSc1ncnc2c1oc1ccccc12
4-ethylsulfanyl-[1]benzofuro[3,2-d]pyrimidine