The preposition in the sentence above is beside because it adds additional detail or information to the statement. Prepositions are very important parts or features of a statement because they give necessary and important information in the sentence making it more comprehensible. These are words that simply introduce details to the readers. However, prepositions are not stand-alone in a sentence because it works best in a group that is called prepositional phrase. Prepositions can either give additional information or make the statement easy to understand.
It takes 20 years to build a reputation and five minutes to ruin it. If you think about that, you'll do things differently.” Here, Buffett says that anyone's reputation can quickly take a hit and to always act with integrity. Otherwise, a whole career can be ruined easily no matter the effort over the years.
Belonged is your possessive noun in that sentence.
D is the correct use of a semicolon