Task: Please answer the multiple choice question.
Question: Rank these molecules from lowest to highest acute oral toxicity rat LD50.
Constraint: You must select all options from a, b, c, d, or e without using any other words.
Options:
a CCCC(=O)OCCc1ccccc1
b CCOP(=S)(OCC)Oc1ccc(Cl)c([N+](=O)[O-])c1
c COc1ccc(CCNCC(O)c2ccc(O)cc2)cc1OC
d O=C(CF)NCc1ccc(Br)cc1
e Nc1ccc(F)cc1
Answer: a
Task: Please answer the multiple choice question.
Question: Rank these molecules from lowest to highest {acute_toxicity__names__noun}.
Constraint: You must select all options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%acute_toxicity%}
Answer: {%multiple_choice_result}