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 OCCNCC(O)CNCCO
b CN1CCN(CC(=O)NN=Cc2ccc([N+](=O)[O-])o2)CC1
c COc1c(C)c2c(c(O)c1CC=C(C)CCC(=O)O)C(=O)OC2
d CC(=O)C1OC1(C)C
Answer: c
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}