0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22
x	1	0	1	0	1	0	1	0	1	0	1	0	1	0	1	0	1	0	1
y	1	1	0	0	1	1	0	0	1	1	0	0	1	1	0	0	1	1	0	0	1	1
z	1	1	1	0	0	0	0	1	1	1	1	0	0	0	0	1	1	1	1	0	0	0	0

Assume that you are implementing the A5/1 algorithm. After a particular step the values of the registers are as shown above. The registers step based on the values of x₈, y₁₀, and z_{10. What will be the next keystream bit that will be generated?}

	1.	0
	2.	1
	3.	Neither 1 nor 0
	4.	Could be either 0 or 1