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) CCS(=O)CCOP(=S)(OC)OC
b) O=NN(CCCC(F)(F)F)CCCC(F)(F)F
c) Nc1nc(N)nc(NC2CC2)n1
d) COc1ccc2c3c1OC1C(O)CCC4C(C2)N(C)CCC341
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}