Answer
The answer and procedures of the exercise are attached in the following archives.
Explanation  
You will find the procedures, formulas or necessary explanations in the archive attached below. If you have any question ask and I will aclare your doubts kindly.  
 
        
             
        
        
        
Answer: c. The project contains simple activity sequences
Explanation:
Gantt chart is a firm of bar chart that depicts a project schedule as it helps in the scheduling of a particular project.
Gantt chart is a graphical tool that helps in showing the activities that are performed against time to the project team or project manager. Gantt charts are effective for project scheduling if such project contains simple activity sequences.
 
        
             
        
        
        
Answer:
D. Considering all business aspects when marketing products
Explanation:
When a whole business (in general) is considered for the marketing strategy, it forms a holistic marketing approach. In this type of strategy different departments of an organization come together to give positive inputs that create a robust business marketing strategy.