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 CCNc1nc(NC(C)C(C)C)nc(SC)n1
b CC12CC=CCC1C(=O)OC2=O
c CCNc1nc(NCC)nc(SC)n1
d Cc1cc(=NC(=O)c2ccccc2O)n(C)n1C
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}