Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocker (<10uM)?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
[a] Cc1[nH]c(=O)c(C#N)cc1-c1ccncc1
[b] COCCCc1cc(Br)cc(CN(C(=O)C2CNCCC2c2ccn(C)c(=O)c2)C2CC2)c1
[c] CC[C@H](Nc1nc(N)nc(N)c1C#N)c1nc2cccc(C#CCCCC(=O)N3CCCC3)c2c(=O)n1-c1ccccc1
Answer: b
Task: Please answer the multiple choice question.
Question: Which molecules are {herg_blocker#not &NULL}a {herg_blocker__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_blocker%}
Answer: {%multiple_choice_result}
N-[[3-bromo-5-(3-methoxypropyl)phenyl]methyl]-N-cyclopropyl-4-(1-methyl-2-oxopyridin-4-yl)piperidine-3-carboxamide