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: O=C(O)c1ccccc1C(=O)Nc1cccc2ccccc12
b: CCCCC=C1CCCCC1=O
c: CCCCCCCCCCCCCCCCCC(=O)NC(CCC(=O)O)C(=O)O
d: Cc1cccc(N(C)C(=S)Oc2ccc3c(c2)C2CCC3C2)c1
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}