Task: Answer the multiple choice question.
Question: Which drug has a -19.657\% 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. O=C(NC1CCC(O)CC1)c1ccc2c(c1)S(=O)(=O)N=C1CCCCCN12
b. COc1ccc(-n2nc(C(=O)Nc3nc4ccc(OC)cc4s3)c3ccccc3c2=O)cc1
c. COCCCn1c(C(=O)N2CCOCC2)cc2c(=O)n3ccccc3nc21
d. Cl.O=C(Oc1cccnc1)c1ccc(Cl)cc1
Answer: d. Cl.O=C(Oc1cccnc1)c1ccc(Cl)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#}
Cl.O=C(Oc1cccnc1)c1ccc(Cl)cc1
Cl.O=C(Oc1cccnc1)c1ccc(Cl)cc1
pyridin-3-yl 4-chlorobenzoate;hydrochloride