Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any other words.
Options:
a CNC(=S)NNc1cc(C(F)(F)F)cc(C(F)(F)F)c1
b CC(C)c1ccc(CC=O)cc1
c CC(C)=CCN(CC=C(C)C)CCC(CC=C(C)C)(C(N)=O)c1cccc2ccccc12
d O=C1OC(=O)c2ccc3c4c(ccc1c24)C(=O)OC3=O
e CC(C)(C)OOC(=O)c1ccccc1
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}