Applying Sequence Slicing to Identify a Context Window

Consider a sequence of items represented as $\mathbf{K} = (\mathbf{k}_1, \mathbf{k}_2, \mathbf{k}_3, \mathbf{k}_4, \mathbf{k}_5, \mathbf{k}_6, \mathbf{k}_7, \mathbf{k}_8)$. A specific slice of this sequence is defined by a context window of size $n_c = 4$ that ends at position $i = 7$. Which of the following sets of items correctly represents this slice?

Deducing Slicing Parameters from a Sequence Slice