DDR vs pinMode [SOLVED]

Which one of the following actions you have taken to clear the DPin-5? Please mention pair-wise
(DDRD, ____) and (pinMode(), _____).

PORTD = 0b11011111;//write                 execution time at 16 MHz sysCLK = 4 cycles : 0.25 us
PORTD &=0b11011111;    //read-modify-write  "-------------------- = 4 cycles: 0.25 us
bitClear(PORTD, 5);         //write                     ''------------------- = 4 cycles: 0.25 us
bitWrite(PORTD, 5, 0);    //write                     ''-------------------- = 4 cycles: 0.25 us
digitalWrite(5, LOW);     //write          "--------------------- = 74 cycles: 4.625 us