Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any other words.
Options:
(a) COC(=O)c1ccccc1N=NN(C)C
(b) CCC(=O)Nc1cccc(OC(=O)NC)c1
(c) COc1ccc2c(c1)C13CCCCC1C(C2)N(C)CC3
(d) COc1ccc(O)c(C(C)(C)C)c1C(O)c1ncc([N+](=O)[O-])n1C
(e) COC(=O)Nc1nc2cc(C(=O)c3ccccc3)ccc2[nH]1
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}