When arriving at a navigation lock what is the order of priority

According to the law of supply,suppliers want to sell their product at prices

Which of the following most likely contributed to the outbreak of world war ii? a. embargoes on international trade b. higher tariff rates in european countries c. sanctions imposed by the united states d. global economic depression

Including place names directions and distances describe a route harriet tubman was likely to have followed from her slave home near bucktown to philadelphia