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 other words.
Options:
a. C1=CCCCC1
b. CCCc1c(OCc2cccn3c(=O)c(CCC(=O)O)cnc23)ccc(C(C)=O)c1O
c. c1ccncc1
d. C=CS(=O)(=O)C=C
e. FC(F)(F)c1nc2cc(-c3ccccc3)ccc2[nH]1
Answer: c
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}