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.) CCN(CC)C(=O)c1cccc(OC)c1O
b.) CCOP(=S)(CC)SCSc1ccc(Cl)cc1
c.) C#CCOc1ccccc1OC(=O)NC
d.) CCOc1ccc(NCCC#N)cc1
e.) ONc1ccccc1
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}