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 additional words.
Options:
a CC(C)C(Br)C(=O)NC(N)=O
b N=C(N)NCCN1CCCCCCC1
c Cc1ncc([N+](=O)[O-])n1CCO
d C=CCOCCO
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}