A security analyst recently used Arachni to perform a vulnerability assessment of a newly developed web application. The analyst is concerned about the following output: 

Which of the following is the MOST likely reason for this vulnerability? 

Answer options:

A. The developer set input validation protection on the specific field of search.aspx.
B. The developer did not set proper cross-site scripting protections in the header.
C. The developer did not implement default protections in the web application build.
D. The developer did not set proper cross-site request forgery protections.

A