Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any additional words.
Options:
a. C=C1CCC(O)CC1=CC=C1CCCC2(C)C1CCC2C(C)CCCC(C)C
b. CC(=O)CCc1c(OC(=O)c2ccccc2)n(-c2ccccc2)n(-c2ccccc2)c1=O
c. CN(C)C(=O)Oc1c(Cl)c(Cl)cc2[nH]c(C(F)(F)F)nc12
d. O=C1CN2CCOC2(c2ccccc2Cl)c2cc(Cl)ccc2N1
e. C=CC(=O)OCCCl
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}