I believe the answer is D: Horizontal.
        
             
        
        
        
Answer:
a community support forum
Explanation:
A community support forum is defined as a meeting place for members of a community to discus their concerns, opinions, and ideas on a shared topic of interest.
In the given scenario customer with various challenges go online to the company's website to search for answers or interact with others with a similar problem.
They are using a community support forum to discuss problems they are facing in using a product
 
        
             
        
        
        
Both A and B so answer C.
        
             
        
        
        
Answer: Option D 
 
Explanation: In simple words, direct finance refers to the situation when the borrowers borrows money directly from lenders, and do not consider taking help from any intermediary. In other words, when the issuers in the financial market sell their securities directly to the general investors then such financing is termed as direct financing. 
This financing is cheaper and benefits both he lender and the borrower. Hence we can conclude that the correct option is D.