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 or b without using any other words.
Options:
(a) Cc1cccc(Nc2cc(Cl)nc(SCC(=O)O)n2)c1C
(b) O=C1c2ccc(O)c(O)c2C(=O)c2c(Nc3ccc(O)cc3)ccc(Nc3ccc(O)cc3)c21
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}