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: CCCSc1ccc2[nH]c(NC(=O)OC)nc2c1
b: CCCCCCCCOP(=O)(O)OCCC(Cl)Cl
c: CNC(=O)ON=C1SCCSC1(C)C
d: O=C1c2ccccc2C(=O)C1c1ccccc1
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}