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, or d without using any additional words.
Options:
a OC(c1ccc(F)cc1)(c1cncnc1)c1ccccc1Cl
b CC12CC=CCC1C(=O)OC2=O
c CC(=O)CCCCn1c(=O)c2c(ncn2C)n(C)c1=O
d CCc1oc2ccccc2c1C(=O)c1cc(Br)c(O)c(Br)c1
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}