I guess there should be an options to choose . Anyway I think that the sentence should sound like this: In the world of marketing, <span>concepts</span> are ideas about products or services
<em><u>In debt fund, the investment is made in fixed-interest securities such as government securities, corporate bonds, commercial paper, treasury bills, and other money market instruments. The major objective of investingin debt funds is to generate capital appreciation and earn interest income.</u></em>