So what I've learned in the past is the operators have made an error ( in Mark II) and when that happened that's when the term bug came!
The correct answer is B.
Hope it helps!!!
Answer:
“The women worked as ammunition testers, switchboard operators, stock takers. They went into every kind of factory devoted to the production of war materials, from the most dangerous posts in munition plants to the delicate sewing in aeroplane factories.”
Answer:
France saw its royal family restored, and Poland became part of Russia
Brunelleschi solve his problem with the dome of the Florence Cathedral by employing sets of diagonal ribs based on the pointed arch and he also created many layers of support within the dome. The answer in this question is by employing sets of diagonal ribs based on the pointed arch.