In 1828 Conrad J. Van houten invented a pressbthat produced fine cocoa powder cocoa powder was easier to mix with water and led to new types of chocolate treats Joseph fry found a new way to use cocoa powder to make solid chocolate bars

This statements are TRUE.

Coenraad Johannes van Houten born 15 March 1801 was a Dutch chemist and chocolate maker known for the treatment of cocoa mass.

In 1828, Dutch chocolate maker Conrad J. van Houten patented an inexpensive method for pressing the fat from roasted cacao beans.

In 1847, Joseph Fry discovered a way to mix the ingredients of cocoa powder, sugar and cocoa to manufacture a paste that could then be molded into a solid chocolate bar for consumption.

the fact that could also be added to column b is that during world war ii, specifically between the years 1941 and 1945, japan expanded its territory towards the indonesian territory in what was known later as part of the "pacific war". in that time, japan could conquer the philipines, singapore,   borneo, central java, malang, cebu, sumatra and various other islands of the area, therefore expanding its territory for a brief period of time.