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. CCCCCOc1ccc(C2SC(=O)NC2=O)cc1OCC
b. Cc1ccccc1OP(=O)(Oc1ccccc1C)Oc1ccccc1C
c. C=CC(C)CCCC(C)(C)O
d. CCCSP(=S)(OCC)Oc1cnn(-c2ccccc2)c(=O)c1OC
e. C=C(C)CCl
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}