Recession come at: a. irregular intervals. during recessions investment spending falls relatively more than consumption spending. b.regular intervals. during recessions consumption spending falls relatively more than investment spending. c.irregular intervals. during recessions consumption spending falls relatively more than investment spending. d.regular intervals. during recessions investment spending falls relatively more than consumption spending.

d. irregular intervals. During recessions investment spending falls relatively more than consumption spending.

Explanation:

             A recession occurs when the economy suffers a marked slippage in the economic activity. When there are two or more consecutive negative growth rate in the GDP qualifies a recession in economy by many economists.

            Recession occurs at irregular intervals. Recession sees a decline in the gross domestic product of a region or a country or the decline in the investment. There is a decrease in the business revenues and sales. during recession unemployment rate increases thus increasing the consumption spending while it deceases the investment spending.

Hence the correct option is (d).

answer; /// i do believe the correct answer is ( a

explanation:

with the profits from the european sales, merchants purchased europe's manufactured  goods, including tools and weapons. then the merchants shipped those manufactured  goods, along with the  american  sugar and rum, to west africa where they were bartered for  slaves.