Task: Please answer the multiple choice question.
Question: Rank these molecules from lowest to highest LD50 in rats (oral exposure).
Constraint: You must select all options from a, b, c, or d without using any additional words.
Options:
a. CCOP(=S)(Cl)OCC
b. O=[N+]([O-])c1cc2[nH]c(C(F)(F)F)nc2c(Cl)c1Cl
c. CCCCCCCC=CC=O
d. O=C1CCc2cc(CCCCN3CCN(c4ccccc4Cl)CC3)ccc2N1
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}