Discussion
A frame layout allocates 64 words per second, each of 12 bits, and a parameter needs 11 bits. It occupies
Answer: A
Correct answer: One word, with one bit unused
An 11-bit parameter fits inside a 12-bit word, leaving one bit spare. Splitting it across two words would be possible but pointless, since it fits.
The spare bit is not necessarily wasted: formats commonly use such bits for sign, validity flags or a companion discrete. The word is the unit of allocation in the frame, so a parameter needing 13 bits would require two words - a step change in cost that shapes how resolution is chosen.
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