A tool in administrative tools which you should open if you want to view messages to troubleshoot errors is an: b. event viewer.
<h3>What is an operating system?</h3>
An operating system (OS) can be defined as a system software that's usually pre-installed on a computing device by the manufacturers, so as to manage random access memory (RAM), software programs, computer hardware and all user processes.
<h3>What is an 
event viewer?</h3>
An event viewer can be defined as an administrative tool that is found in all versions of Windows Operating System (OS) which is designed and developed to enable administrators and end users in viewing the event logs of software application and system messages such as errors on a local or remote machine.
In this context, we can reasonably infer and logically deduce that an event viewer is a tool in administrative tools which you should open if you want to view messages to troubleshoot errors.
Read more on event viewer here: brainly.com/question/14166392
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Types in java are divided into two categories. the primitive types are boolean, byte, char, short, not, long, float, and double. all other types are REFERENCE types
        
             
        
        
        
Answer:
Sandbox Testing
Explanation:
Sandbox testing is used to test the new changes which is not their in your production server. Sandbox refers to a test server where we can deploy untested changes so that tester can test those changes separately