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: CN1C2CCC1CC(OC(=O)C(CO)c1ccccc1)C2
b: OC1(c2ccc(Cl)cc2)c2ccccc2C2=NCCN21
c: CC(=O)C1(O)CCC(c2ccccc2)CC1
d: CCCn1c(=O)c2[nH]c(C)nc2n(CC(C)C)c1=O
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}