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 additional words.
Options:
a CC(=O)CC(C)(C)O
b CCOP(=S)(OCC)SC(CBr)N1C(=O)c2ccccc2C1=O
c CC=CC#N
d CCOP(=O)(N=C1SCS1)OCC
e CC(=O)OCC1=CCC2CC1C2(C)C
Answer: a
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}