Which item best completes the chart?

The best item is letter B: to protect against future economic crises.

The correct answer is B.

The Securities and Exchange Comission is an independent agency from the US federal goverment that was introduced as part of implementation of the New Deal, a package of measures approved by president Roosevelt to end the economic crisis during the 1930s.

Its main aim would be to prevent a new financial crisis by establishing regulations and keeping the markets under surveillance. It has powers to enforce laws related to federal securities, propose new regulations for the securities industry and execute them and also directed to the nation's stock and options exchanges, etc.

the perimeter of a triangle is 69 cm. side a is 5 cm shorter than side b. side c is twice as long as side a. find the length of each side. i need to know how to do it in 2 equations.  

equations:

a = b-5

c = 2a

a + b + c = 69

the answer is c. to explore the louisiana purchase