How did geography most benefit the malacca and brunei sultanates?

They are located on strategic location to control important sea trade routes.

For example, strait of Malacca is located near these areas . The strait connected both all south east Asian region and proved a pathway to access India. Being located in this area will give that country with the ability to control important sea routes for commodities that popular in south east Asia (such as tropical fruits and spices)

i receive this honor with deep gratitude and great humility. it is an award that speaks to our highest aspirations — that for all the cruelty and hardship of our world, we are not mere prisoners of fate. our actions matter, and can bend history in the direction of justice.

this is a way. : )