If we use a piece of code as follows while configuring the TIMERO module in the Atmega2560, what setting have we set the clock signal selection of this module? EOR R18, R18 INC R18 SBR R18, 0x02 OUT TCCROB, R18 A. 1:8 pre-scaler B. 1:64 pre-scaler C. 1:256 pre-scaler D. 1:1024 pre-scaler (clk 1/0/8) (clk[/0/64) (clk 1/0/256) (clkr/o/1024)