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, or c without using any other words.
Options:
a: ClC1CCC2SC1CCC2Cl
b: N=C1C=C(Br)C(=O)c2c(N)cc(Br)c(O)c21
c: COC(=O)Nc1nc2cc(Oc3ccc4[nH]c(NC(=O)OC)nc4c3)ccc2[nH]1
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}