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 CCCC(=O)OCc1ccccc1
b N#Cc1cc(Br)c(O)c(Br)c1
c CN(C(=O)CF)c1cccc2ccccc12
d CCc1cc(CC)cc(OC(=O)NC)c1
e CC(O)c1cc(N)cc(C(F)(F)F)c1
Answer: d
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}