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, or d without using any other words.
Options:
(a) O=c1[nH]c(=O)n(CC2CC2)c2nc[nH]c12
(b) Cc1cccc(NC(=O)c2ccccc2C(=O)O)c1
(c) CCC(=O)C(CC(C)N(C)C)(c1ccccc1)c1ccccc1
(d) CCC(O)(c1ccccc1)c1cccc(C(F)(F)F)c1
Answer: d
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}