Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, or d without using any other words.
Options:
[a] CC(=O)Cl
[b] COP(=O)(OC)SC(C)(C)C
[c] O=C1C(O)N=C(c2ccccc2F)c2cc(Cl)ccc2N1CCO
[d] FC(F)(F)c1nc2cc(Br)ccc2[nH]1
Answer: a
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}