Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are uncertain, you must pick either a, b, c, or d without using any other words.
Options:
a) CCNc1nc(Cl)nc(N(CC)CC)n1
b) Clc1ccc(C(Cl)(Cl)c2ccc(Cl)cc2)cc1
c) O=C(O)c1ccccc1Nc1c(Cl)cc(Cl)c2ccccc12
d) CC1C(=O)CC2(C(C)C)CC12
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}