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, c, d, or e without using any additional words.
Options:
a: CS(=O)(=O)O
b: O=C(O)c1cccnc1
c: O=C1C(Cl)=C(NC(=O)C(Cl)Cl)C(=O)c2ccccc21
d: CCCCCCCC=O
e: CCCc1nc(C)cc(OP(=S)(OCC)OCC)n1
Answer: b
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}