cnt books has expanded considerably since you got the network up and running three years ago.it now occupies and entire floor in the building,and its lan has grown to included several servers and more than $60$ workstations.cnt books has recently purchased another book company and needs more space and computers.expansion plans include leasing another floor four stories above current offices in the same building and adding $35$ workstations and least one more server inmediately,with additional equipment purchases expected.what type of network is called for$-$lan,wan,man,or internet work?what additional devices might be needed to ensure efficient network communication