If the veteran is unmarried (or married but not living with or reasonably contributing to the support of such veteran’s spouse) and there is no child of the veteran in the custody of the veteran or to whose support the veteran is reasonably contributing, and unless the veteran is entitled to pension at the rate provided by subsection (d)(1) or (e) of this section, pension shall be paid to the veteran at the annual rate of $11,830, reduced by the amount of the veteran’s annual income.