[单选题]
According to the Bohr model of the atom, the angular (7bmj66 ::qpds-ju tzcq0tsoeoi w 8 6momentum of an w*c)9rcqsr q2bt/*c oelectron around the nuclq9*cr*o cs )cw bq/r2teus
A. could equal any positive value.
B. must equal an integral multiple of h.
C. must equal an integral multiple of h/2p.
D. decreases with time, eventually becoming zero.