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: NCC1CCC(CN)CC1
b: COP(=S)(S)OC
c: CC(C=CC1=C(C)CCCC1(C)C)=CC=CC(C)=CCO
d: C=CCN(C(=O)Cn1nc(C)ccc1=O)C(C)Cc1ccccc1
Answer: b
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}