Task: Please answer the multiple choice question.
Question: Rank these molecules from lowest to highest acute oral toxicity (LD50 in rats).
Constraint: You must select all options from a, b, c, d, or e without using any other words.
Options:
(a) O=C(Nc1ccc(Br)cc1)c1cc(Br)ccc1O
(b) O=C(O)C1CCCCC1(O)c1ccccc1
(c) Nc1nc(N)nc(N)n1
(d) OC1CCc2ccccc2C1
(e) Nc1c(Cl)cc(C(=O)NC2CC2)cc1Cl
Answer: b
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}