Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are uncertain, you must pick either a, b, c, or d without using any additional words.
Options:
a) OC1CCc2ccccc2C1
b) CC1(C)CC(NC2CC(C)(C)NC(C)(C)C2)CC(C)(C)N1
c) OC1(c2ccc(C(F)(F)F)cc2)c2ccccc2C2=NCCN21
d) CC(C(=O)O)c1ccc(-c2cn3ccccc3n2)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}