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 other words.
Options:
[a] CCCCP(=S)(CCCC)CCCC
[b] CCCC(Cn1cncn1)c1ccc(Cl)cc1Cl
[c] COP(=S)(OC)SC1CCC2C=CCC1S2
[d] O=C1CCc2cc(C=CCN3CCN(c4ccc(Cl)cc4)CC3)ccc2N1
[e] CCN(CC)C(=O)C(Cl)=C(C)OP(=O)(OC)OC
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}