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.) ClCC1OC1CCl
b.) C#CCOCC#C
c.) CCOP(=O)(OCC)Oc1ccc2c(C)c(Cl)c(=O)oc2c1
d.) CCOC(=O)C=C(C)OP(=O)(OCC)OCC
e.) Oc1c(Cl)cc(Cl)cc1Sc1cc(Cl)cc(Cl)c1O
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}