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 other words.
Options:
a: CC(=O)OCC12CC(O)C(C)=CC1OC1C(O)C(O)C2(C)C12CO2
b: COC(=O)C=C(C)N
c: Fc1ccc(SCc2ccc(Cl)cc2)cc1
d: c1ccc(-c2ccccc2)cc1
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}