Which of the following is considered to be the most risky?
a. u.s. government bonds
b. mortgage bonds
c. corporate bonds
d. common stocks

Common stocks

Explanation:

Out of all the given options the Common stocks are considered to be the most risky investment on comparison to others.

This is due to the fact that the returns from these investments are uncertain. because if there is a loss of a particular company whose stocks belongs ,the stockholders will not get any amount as return against their investment.

Also, If the condition of company's bankruptcy arises or it goes bankrupt, the common stockholders are below the other class of bond like the corporate bonds and mortgage bonds. Thus, the stockholders will not receive the money until the  shareholders, bondholders, and other debt of the company have been fully paid from the assets that is leftover.

Hence, the correct answer is option (d)

for many centuries there were important factors which the economies of the muslim empires developed increasingly. they applied economic procedures in production, investment, finance, taxation and property. they used to tax certain goods (for example: harvest), they charged interest on money lent, they signed contracts with merchants; they relied on a common currency, and they used checks as well as promissory notes. with the money collected by means of taxation, the government provided the needy with an income. in addition, trading networks covered huge distances, so far regions started to have contact and exchange goods. this trade network covered areas of asia, africa and europe.

answer; limbic system;