5
An embedded system programmed in ANSI C must produce a  pulse-width-modulated signal on a digital output to indicate an integer value where 0 is represented by a continuously high level and Oxffff is represented by a continuously low level.Which of the following identify signals which represent a value of 0x7000?

A.20 millisecond period, 11.25 millisecond pulse width
B.100KHz frequency, 5.63 microsecond pulse width
C.100KHz frequency, 4.38 microsecond pulse width
D.2000 Hz frequency, 563 microsecond pulse width
E.30 millisecond period, 13.13 millisecond pulse width
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FROM 1.124.107.*