As one may not take both itemized deductions and a standard deduction, taxpayers generally choose the deduction that results in the lesser amount of tax owed.
Brazil is a federal presidential constitutional republic, based on representative democracy. The federal government has three independent branches: executive, legislative, and judicial. Executive power is exercised by the executive branch, headed by the President, advised by a Cabinet.
Canada's government is a federal parliamentary democracy and constitutional monarchy. This means that Canada, as a federation, is governed by both provincial and federal governments. Canada's government has a prime minister, who is the senior member of the country's elected federal parliamentary democracy. The prime minister is the most powerful executive in Canada and provides leadership with the support of a cabinet that he selects.