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, or d without using any additional words.
Options:
(a) CCCCNCCO
(b) CCC1C(c2ccccc2)=CCC(C(=O)O)C1C
(c) CN1C(=O)C(O)N=C(c2ccccc2)c2cc(Cl)ccc21
(d) O=S(=O)(F)CCCl
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}