4. Solve the following questions with r programming. (25p) a. Install and use "animals" data set included in the "cluster" package. b. Show the first 5 rows of this dataset c. Create a data frame of 5 rows of record with the columns which are name, age and salary. (set the row data from yourself) d. add the location column to the data frame. (also add the data for this column) e View the age and location of records which salaries greater than 3000 TL. f. Calculate net wages by taking the tax deduction of salaries by 20 percent. Then calculate the average salary of all employees. g Display the best salary and worst salary among employees. h. Create and display a matrix with the results obtained