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, d, or e without using any other words.
Options:
a. O=C(Oc1ccccc1)c1ccccc1O
b. Cc1cc(N)n(-c2ccccc2)n1
c. COP(=O)(NC(C)=O)SC
d. CC1COC2(c3ccccc3Cl)c3cc(Cl)ccc3NC(=O)CN12
e. CC=CC#N
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}