Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are not sure, you must pick either a, b, c, or d without using any other words.
Options:
a) CCCC(C)(Oc1ccc(Cc2ccc(Cl)cc2)cc1)C(=O)OCc1cccnc1
b) Nc1ccc(Cc2ccc(N)c(Cl)c2)cc1Cl
c) CCc1nccnc1C
d) Cc1ccccc1-c1nc2c(N)nc(N)nc2nc1N
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}