3. Given the following pseudo code, please design an activity diagram that models this code. [7 Marks] Function: Calculate b to the power n (i.e., b) Input: b (base) and n are integer numbers Output: The result object, which is an integer number Steps: Set result = 1 If b or n is negative values, set the result to -1 and return the result. If n is zero and bis a positive number, set the result to 1 and return the result. If b is zero and n is a positive number, set the result to O and return the result. if b and n are both positive values, Repeat for y timesthe following step. set result = current result * b Return the result. O O