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 other words.
Options:
(a) CC(C(=O)Nc1cc(-c2ccccc2)nn1-c1ccccc1)N(C)C
(b) O=C1OC(=O)c2ccc3c4c(ccc1c24)C(=O)OC3=O
(c) CC(=O)Oc1ccc(C)cc1
(d) COP(=S)(OC)Oc1ccc(S(=O)(=O)N(C)C)cc1
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}