Mr tannenbaum has a 15.2 in x 11.4 in monitor on his computer. after purchasing a hdmi cord and hooking up his computer to his 65" tv, the rim of the picture did not show up on his tv screen. this was because

a: he did not put it on full screen
b: the aspect ratio of the tv ( 16: 9) does not match the aspect of his computer monitor
c: the aspect of the tv ( 4: 3) does not match the aspect of his computer monitor
d: new tv's have a default that will only receive 90 percent of the computer screen