Task: Please answer the multiple choice question.
Question: Rank these molecules from lowest to highest rat LD50 (oral exposure).
Constraint: You must select all options from a, b, c, or d without using any other words.
Options:
a. CCOc1ccccc1OCC1CNCCO1
b. c1nc(NC2CC2)c2ncn(CC3CC3)c2n1
c. O=[N+]([O-])c1cnc(Cl)c([N+](=O)[O-])c1
d. O=[N+]([O-])c1cc([N+](=O)[O-])c(Nc2cc(C(F)(F)F)ccc2Cl)c(C(F)(F)F)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}