4.16 (Triangle-Printing Program) Write a program that prints the following patterns separately, one below the other. Use for loops to generate the patterns. All asterisks (*) should be printed by a single printf statement of the form printf ( " %s" , " * " ) ; (this causes the asterisks to print side by side). [Hint: The last two patterns require that each line begin with an appropriate number of blanks.] CA) CD) * * *** * * **