Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any other words.
Options:
a OC1(c2ccccc2)c2ccccc2C2=NCCN21
b CN(C)CC=C(c1ccc(Br)cc1)c1cccnc1
c CCOP(=S)(N=C1SCCS1)OCC
d OC1(c2cccc(Cl)c2)c2ccccc2C2=NCCN21
e Cc1c(CC(=O)O)c2ccccc2n1C(=O)c1ccccc1
Answer: c
Task: Please answer the multiple choice question.
Question: Which molecule has the highest {acute_toxicity__names__noun}?
Constraint: Even if you are {#uncertain|not sure!}, you must pick either {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%acute_toxicity%}
Answer: {%multiple_choice_result}