Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (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. COC(=O)C1CCc2cc(C3CCCCC3)ccc21
b. C1CCC(N2CCOCC2)CC1
c. C(Oc1nc(OCC2CO2)nc(OCC2CO2)n1)C1CO1
d. CN(C)CCCN1c2ccccc2CCc2ccc(Cl)cc21
e. O=C(OCC1CO1)c1ccccc1
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}