A breadboard-circuit design using a BCD-to-decimal decoder has a problem wherein the operation of the system is erratic. The technician uses his scope to examine the waveforms throughout the system and doesn't really see any problems. While he

• A. The decoder is thermally intermittent; replace it.
• B. Glitches are probably the culprit; strobe the decoder.
• C. The decoder is thermally intermittent and must be replaced; or there is probably a bad connection on the wire wrap protoboard, and the wiring must be rechecke
• D. There is probably a bad connection on the wire wrap protoboard; recheck the wiring