Prior to its maturity date, in the case of the 2023 Notes, or its applicable Par Call Date for the 2025 Notes, the2030 Notes and the 2050 Notes, we may redeem such series of notes at our option, at any time in whole or from time to time in part, at a redemption price as calculated by us, equal to the greater of:

• 100% of the principal amount of the notes being redeemed; or

• the sum of the present values of the remaining scheduled payments of principal and interest on the notes being redeemed (assuming, in the case of the 2025 Notes, the 2030 Notes and the 2050 Notes, that such notes matured on their applicable Par Call Date (as defined below)), exclusive of interest accrued to, but excluding, the date of redemption, discounted to the date of redemption on a semi-annual basis (assuming a 360-day year consisting of twelve 30-day months) at a rate equal to the sum of the applicable Treasury Rate (as defined below) plus 10 basis point in the case of the 2023 Notes, plus 12.5 basis points in the case of the 2025Notes, plus 20 basis points in the case of the 2030 Notes and plus 25 basis points in the case of the 2050 Notes.

“ Par Call Date ” means (i) with respect to the 2025 Notes, April 11, 2025 (one month prior to the maturity date of such notes), (ii) with respect to the 2030 Notes, February 11, 2030 (three months prior to the maturity date of such notes) and (iii) with respect to the 2050 Notes, November 11, 2049 (six months prior to the maturity date of such notes).