Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any other words.
Options:
a.) OC(CBr)C(O)C(O)C(O)CBr
b.) CCNC(=S)NCC
c.) CCCCCCOC(=O)CC#N
d.) OCC(O)CN1CCN(c2ccccc2)CC1
e.) COP(=S)(OC)SCCNC(C)=O
Answer: e
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}