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, or d without using any other words.
Options:
[a] OCc1c(F)c(F)c(F)c(F)c1F
[b] CCC(=O)c1ccc2c(c1)N(CCCN(C)C)c1ccccc1S2
[c] CNc1cccc2ccccc12
[d] COP(=S)(OC)Oc1cc(C)c(SC)c(C)c1
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}