William owns and manages his civil engineering business . The following items appear as expenses in William's profit and loss account . For each expense state whether or not it is an allowable deduction for tax purposes; give a reason for each answer. (a) Cost of new concrete advertising sign (b) Key man insurance policy, annual premium (c) Cost of insurance premium on survey instruments (William's personal property (d) Legal expenses incurred to review new civil engineering contract (e) Donation to the Peoples National Party (f) Subscription to the Jamaica Institution of Engineers (g) Subscription to the Economist (h) Donation to Wolmers Foundation, the Miami Chapter (I) Subscription to Mona Football Club (j) Loan instalments to purchase second -hand back-hoe (k) Repairs to second hand back -hoe (l) Cost of airline tickets to Miami (self and wife) (m) Severance payments to employees (n) 25 percent of his income to a retirement scheme