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, d, or e without using any additional words.
Options:
(a) Nc1nc(N)nc(N)n1
(b) O=C=Nc1ccc(Cc2ccc(N=C=O)cc2)cc1
(c) CC1=NN(c2ccc(C)cc2)C(=O)C1
(d) Cc1ccccc1NC(=N)Nc1ccccc1C
(e) C1CCC(N2CCOCC2)CC1
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}