Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any additional words.
Options:
a.) O=C(C=CC=Cc1ccc2c(c1)OCO2)N1CCCCC1
b.) Fc1ccc(C(c2ccccc2)(c2ccccc2F)n2ccnc2)cc1
c.) Cc1cc(C)c(Cc2cc(C)c(C)cc2C)cc1C
d.) CNc1nc(C)nc(OC)n1
e.) Oc1ccc(Cc2ccc(O)cc2)cc1
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}