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, or d without using any additional words.
Options:
a: CCc1cccc(C)c1N(C(=O)CCl)C(C)COC
b: COC(=O)Nc1nc2cc(C(=O)c3ccccc3)ccc2[nH]1
c: Ic1ccccc1
d: COc1ccc(C(=O)c2ccccc2)c(O)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}