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 CCCCOC(=O)CCCCCCCCC(=O)OCCCC
b Cc1ccccc1C(=O)N=C1NCCS1
c O=C(O)CCC(=O)c1ccc(-c2ccccc2)cc1
d CCCCCCCCCCN
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}