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 additional words.
Options:
(a) NCCNCCNCCN
(b) CC1=NN(c2ccccc2)C(=O)C1=CN1CCOCC1
(c) CC(Cl)(Cl)C(=O)O
(d) CCCCc1c(C)nc(NCC)nc1OS(=O)(=O)N(C)C
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}