During the shifting of bits in an encoder, how are the transitions in the states represented? A. By lines B. By circles C. By summers D. By squares

The correct answer is: A. By lines.

During the shifting of bits in an encoder, the transitions in the states are represented by lines. These lines connect the different states of the encoder, and they show how the state of the encoder changes as bits are shifted in.

The other options are incorrect because they do not represent the transitions in the states of an encoder. Option B, circles, is incorrect because circles are not used to represent the transitions in the states of an encoder. Option C, summers, is incorrect because summers are not used to represent the transitions in the states of an encoder. Option D, squares, is incorrect because squares are not used to represent the transitions in the states of an encoder.