In order to get her 2nd grade students to memorize the poems written on the chalkboard, mrs. thyberg gives the students stickers for each poem they can recite from memory. after earning 5 stickers, a student gets to pick a prize out of the goody box. mrs. thyberg is using (a) to modify the children's behaviors.

Gif the public and community loses trust in banks it affects the entire u. s. financial system. in order to keep this type of financial contagion from happening, the fed makes as needed short-term emergency loans, by acting as the lender of last resort. guides and regulates private deposit insurance programs to cover insolvent bank losses. decreases the money supply as acting lender of last resort.