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 COc1ccc(C2OCOCC2C)cc1
b O=C(Nc1ccc(Br)cc1)c1cc(Br)ccc1O
c CCCCOC(=O)C1CCC(C(=O)OCCCC)C1
d COCCCNc1nc(NCCCOC)nc(SC)n1
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}