<span>first one is either C or D and o nthe second one i think that when the reinasance times started, so c improve</span>
They learned to have a better navy, because they hired Greek captains to help them become better sailors since their sailors were pretty bad. Once they boarded the enemy then they engaged had-to-hand combat.
Since you provide no options, That could be considered an economic Benefit. Using require materials will lead to using less money for the expenditure, which later on could be allocated to fund a more important/pressing matter such as welfare.
hope this helps
