Help i know what this is

Known officially as a parliamentary democracy, but sovereign to the united kingdom, which canadian official is the head of canadian government? a) the president of canada b) the prime minister of canada c) the governor general of canada eliminate d) the royal canadian mounted police

Prices for products became more affordable as a result of new forms of ,witch got things to market faster and cheaper

The romans believed every human being deserved rights, even slaves. true or false