Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, c, or d without using any additional words.
Options:
a.) CCCCCc1cc(O)c2c(c1)OC(C)(C)C1CC=C(C)CC21
b.) Oc1ccc(-c2ccccc2)cc1CN1CCCCC1
c.) CN(C)C(=O)N(C(=O)c1ccccc1)c1ccc(Cl)c(Cl)c1
d.) S=c1[nH]c2ccccc2[nH]1
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}