The correct answer is High-tech sector employees were less likely to lose their jobs
Whereas many businesses stalled and had to fire people, these were mostly people that were easily replaced for someone who could work for a smaller salary. High tech sector employees are usually too much of a benefit to the company to be laid off so their job security was high since nobody could replace them.
Roosevelt and most Americans considered the Pearl Harbor attack to be a dirty trick, because it occurred while the Japanese ambassador was talking with the US about keeping peace in-between the two nations.