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, or c without using any other words.
Options:
a: CC(=O)CC(C)C
b: COC1CC(OC2C(C)C(=O)OC(C)C(C)C(O)C(C)C(=O)C3(CO3)CC(C)C(OC3OC(C)CC(N(C)C)C3O)C2C)OC(C)C1O
c: C=CC1CN2CCC1CC2C(O)c1ccnc2ccc(OC)cc12
Answer: a
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}