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 additional words.
Options:
a) Fc1ccc(C(c2ccccc2)(c2ccccc2F)n2ccnc2)cc1
b) C=C1CCC2CC1C2(C)C
c) Cc1cc(C)n(CCO)c(=O)n1
d) O=c1oc2ccccc2c(O)c1Cc1c(O)c2ccccc2oc1=O
e) COCCCNc1nc(NCCCOC)nc(SC)n1
Answer: b
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}