The specific charge of an electron is its charge-to-mass ratio. Its magnitude is |e/mₑ| = (1.602 × 10⁻¹⁹)/(9.11 × 10⁻³¹) ≈ 1.76 × 10¹¹ C kg⁻¹. The signed value is negative because the electron has negative charge, but the option gives the magnitude.
