Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocker?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a O=C(O)c1ccccc1C(=O)Nc1ccc(S(=O)(=O)Nc2nccs2)cc1
b O=C(Nc1cc(S(=O)(=O)N2CCOCC2)ccc1N1CCOCC1)c1cn2ccccc2n1
c COc1ccc(C2=NOC(C(=O)Nc3cc(Br)ccc3O)C2)cc1OC
d CC1Oc2ccccc2N(CC(=O)N2CCCCC2)C1=O
Answer: b
Task: Please answer the multiple choice question.
Question: Which molecules are {herg_inhib#not &NULL}a {herg_inhib__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_inhib%}
Answer: {%multiple_choice_result}