The correct answer is C. Bit error rate.
A bit error rate (BER) is a measure of the number of bit errors that occur per unit time or per unit distance in a digital communication system. It is usually expressed as a percentage or as a ratio of the number of bits in error to the total number of bits transmitted.
A bit error can occur due to a number of factors, such as noise, interference, or hardware failure. The BER is an important parameter in the design and performance evaluation of digital communication systems.
A. Equally likely
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