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] C=CCNP(=O)(OC=C(Cl)Cl)OCCCl
[b] CC#CN(CC)CC
[c] CCCCCCC(CC=CCCCCCCCC(=O)OCCOC)OC(C)=O
[d] O=C1CC2OCC=C3CN4CCC56c7ccccc7N1C5C2C3CC46
Answer: c
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}