Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any additional words.
Options:
a) COc1ccc(C(=O)N2CCCC2=O)cc1
b) CCN(CC)C(=O)N1CCN(CC(=O)NN=Cc2ccc([N+](=O)[O-])o2)CC1
c) O=S(=O)(C(Cl)CCl)C(Cl)CCl
d) CCC(=O)C1c2cccc(O)c2C(=O)c2c(O)cccc21
e) CCN(CC)CCOCCOC(=O)C1(c2ccccc2)CCCC1
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}