I’m 98% sure that it is B because customer service would be provided to people who buy from the company and need help
I think you can call it to a Network Switch, but LAN is always used device network: Hubs and Switch or maybe Connect Device or Cable.
Answer:
The number of subproblems are given as
while the value of T(n) to be less than S(n) is for 342.
Explanation:
The number of subproblems are given as

Asymptotic running time for Strassen’s algorithm is 
Now, when a increases, number of subproblems determines the asymptotic running time of the problem and case 1 of master theorem applies. So, in worst case, asymptotic running time of the algorithm will be

Now, for T(n) to be smaller than S(n)

So,

So,
a=342
Answer:
A client wishes to update their legacy system even though there have been no security breaches since its implementation five years ago. If the client has not suffered any attacks, why is it still necessary to update their system? ... Because new security threats emerge all the time.
It depends on what application are you using