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 other words.
Options:
a. OC1CCCCC1c1ccccc1
b. CCNc1nc(NC(C)(C)C)nc(SC)n1
c. Nc1nc(N)nc(N)n1
d. CN1CCN(CCC(=O)NN=Cc2ccc([N+](=O)[O-])o2)CC1
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}