Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any other words.
Options:
a.) COc1ccc2c(c1)c(CC(=O)OCOC(=O)c1cccc(C)c1)c(C)n2C(=O)c1ccc(Cl)cc1
b.) OCCOCc1ccccc1
c.) Oc1c(Br)cc(Br)cc1Br
d.) O=C=Nc1cccc(C(F)(F)F)c1
e.) CCP(=S)(CC)Oc1cc(Cl)c(Cl)cc1Cl
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}