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(N)=O)(c1ccccc1)c1ccc(N)cc1
(b) CCNc1nc(Cl)nc(NC(C)(C)C)n1
(c) c1ccc2c(c1)ncn2P(n1cnc2ccccc21)n1cnc2ccccc21
(d) CCNc1nc(NC(C)(C)C)nc(SC)n1
Answer: d
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}