Emily is functioning with her customer, anna, on the design of a new database. she describes to anna that key fields are utilized to access, coordinate, and preserve the data records. anna asks if it is manageable to fetch records using a field or combination of fields that is not unique. emily tells her that it is possible using one type of key. identify the type of key used here. a. ancillary keyb. foreign keyc. candidate keyd. multifaceted key

answerdmz;

the major difference between the two is the objective and the reward of the game. candy crush has a puzzle theme with the objective of meeting a specific quota of points or objects, you are able to gain access to the next level and compete with peers on the process. on duolingo the objective is rather different, you are given sets of questions for you to answer for you to move to the next level and as for the reward, you are able to learn available language as this is an app developed to teach the user about other languages.