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, d, or e without using any other words.
Options:
a. CCCCc1c(OC(=O)c2ccccc2)n(-c2ccccc2)n(-c2ccccc2)c1=O
b. NNC(N)=S
c. CC(C)N=C1SC(=NOC(=O)N(C)SC(Cl)(Cl)Cl)C(C)(C)S1
d. CCOC(=O)NCCSP(=S)(OC)OC
e. CCC(C)C(C)C=O
Answer: e
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}