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 CCC1(c2ccccc2)C(=O)NC(=O)NC1=O
b COc1ccc2c(c1)OC(C)(C)C(c1ccccc1)C2c1ccc(OCCBr)cc1
c COc1cc(C(=O)N2CCN(C(=O)c3cc(OC)c(OC)c(OC)c3)CC2)cc(OC)c1OC
d CCCCN
Answer: d
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}