Question

serial format means digital signals are

sent in groups of eight signals.

sent over many conductors simultaneously.

sent over one conductor sequentially.

sent in binary coded decimal.

Explanation:

Serial format transmits data one bit at a time over a single conductor in a sequential manner. Option A refers to parallel - like grouping (though not exactly parallel), option B is parallel transmission (many conductors simultaneously), and option D is about a coding scheme (binary - coded decimal) rather than the transmission format. Serial format's key characteristic is sequential transmission over one conductor.

Answer:

C. sent over one conductor sequentially.