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, d, or e without using any other words.
Options:
[a] CCC(C)(C)c1ccc(OP(=O)(NC)OC)c(Cl)c1
[b] CC(N)Cc1ccccc1
[c] CCCCCCc1ccc(C(CBr)OCC(CC)CCCC)cc1
[d] COc1ccc(C)cc1N
[e] CCOP(=S)(OCC)Oc1ccc(Cl)cc1Cl
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}