Differentiate y = log(eˣ+e⁻ˣ).

Options

• Option A

  [eˣ-e⁻ˣ]/[eˣ+e⁻ˣ]

• Option B

  log(eˣ+e⁻ˣ)

• Option C

  -([eˣ-e⁻ˣ]/[eˣ+e⁻ˣ])

• Option D

  0