Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, or d without using any additional words.
Options:
[a] CCC(C)N(C(=O)SCc1ccccc1)C(C)CC
[b] CCN(CC(=O)OCC(F)(F)F)c1cccc(C)c1
[c] CCOC(=O)c1ccccc1C(=O)OCC
[d] Nc1cccc(O)c1
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}