Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any additional words.
Options:
a) CCOC(C1=NCC(C)(C)CN1)c1ccc(Cl)cc1
b) CCCCCCCCCCCCCCCCOC(=O)Cc1ccc(N(CCCl)CCCl)cc1
c) CCOP(=O)(OCC)SCc1nnc(SC)s1
d) CCOP(=S)(OCC)Oc1cc(Cl)c(Br)cc1Cl
e) CCOC(C1=NCC(C)CN1)c1ccc(Cl)cc1
Answer: a
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}