Which of the following was a key progressive item passed by taft?
the pure food and drug act
the u. s. forestry service
the mann-elkins act
the payne-aldrich act

the Mann-Elkins Act

Explanation:

According to President Taft, the act was meant to "to regulate destructive competition and unfair trade practices". This was one of the reforms among the Progressive Era ones. It is generally agreed that the Mann–Elkins Act basically paved the way for the yet to come Communications Act of 1934.

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.

the anwser is a) to prevent military conflict