Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are not sure, you must pick either a, b, c, or d without using any other words.
Options:
a. OC1(c2ccc(Cl)cc2)c2ccccc2C2=NCCN21
b. Cc1cccs1
c. Cn1c(=O)c2[nH]cnc2n(C)c1=O
d. CC(C)c1c(C(=O)c2cccnc2)c2ccccc2n1C
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}