Correct Answer: (a) seasonal
Solution:Seasonal unemployment occurs when people cannot find employment in certain months of the year. This type of unemployment is found in the agricultural sector. People engaged in agriculture get employment when ploughing, sowing, harvesting, etc., but as soon as these works are completed, people engaged in agriculture become unemployed. Whereas in disguised unemployment the productivity of some people is zero i.e. even if these people are removed from that work, there is no production. There won't be a difference.