Compute the derivative of the loss function j(w) with respect to w, where j(w) = {1/2}[ ∑_{i=1}ᵐ (wᵗx{(i) } - y{(i) }) ² ] λ ‖w‖²₂

a) 1/2 * sum(i=1 to m) [ (wᵗ * x(i) - y(i) ) ² ] * λ * ||w||²₂
b) 1/2 * sum(i=1 to m) [ (wᵗ * x(i) - y(i) ) ² ]
c) 1/2 * sum(i=1 to m) [ (wᵗ * x(i) - y(i) ) ² ] + λ * ||w||²₂
d) 1/2 * sum(i=1 to m) [ (wᵗ * x(i) - y(i) ) ] * λ * ||w||²₂