6. Student Work Starts Here 1. C code and simulation on PICSimLab (25 Points) Each code line should be explained using comments a. Write C code to light even LEDs on PORTB and after 1 sec delay light odd LEDs of PORTB. (12.5p) b. Update the code to light even LEDs on PORTD and after 3 sec delay light odd LEDs of PORTD. (12.5p)