If We Assume That $T r _ { t } = \Delta M _ { t } = 0$

If we assume that $T r _ { t } = \Delta M _ { t } = 0$ , which of the following represents the government's budget constraint?

A) $G _ { t } + i B _ { t } = T _ { t } + \Delta B _ { t }$
B) $B _ { t } + 1 = ( 1 + i ) B _ { t } + G _ { t } - T _ { t }$
C) $G _ { t } = T r _ { t }$
D) $G _ { t } = T _ { t }$
E) $B _ { t + 1 } = ( 1 + i ) B _ { t } + G _ { t }$