The output waveform Q shown in the figure below represents:

Note that the initial value of the output is zero.

Output

Select one:

a$.$ JK flip$-$flop at the falling edge when input $1=J$ and input $2=K$

b$.$ JK filp$-$flop at the falling edge when input $1=K$ and input $2=J$

c$.$ JK flip$-$flop at the rising edge when input $1=J$ and input $2=K$

d$.$ JK flip$-$flop at the rising edge when input $1=K$ and input $2=J$