**Answer:**

9.97sec

**Explanation:**

**To solve for the period we can derive the formula as follows**

ω=2πf

ω=2π/T

v=rω

v=2πr/T

T=2πr/v

T=9.97sec

**Answer:**

0.0000045 s

**Explanation:**

f = Frequency = 8 MHz

Clock cycle is given by

Time taken for 12 clock cycles

Time taken per instruction is 0.0000015 s

In reading and displaying information it requires 3 processes

1 for reading, 1 for searching and 1 for displaying.

**Time taken is 0.0000045 s**

D. sequence because a pattern is like a sequence and that doesn't explain why that pattern would occur.