Only answer the multiple questions $$ a$,$ b$,$ c$,$ d $($no need for explanation$)$

$1.$ How many information and knowledge workers in the US rely on information systems for their jobs?

a$)120$ million only

b$)57$ million only

c$)$ More than $177$ million

d$)$ Less than $57$ million

$2.$ Information systems are mainly used by:

a$)$ Retail firms only

b$)$ Manufacturing firms only

c$)$ All of the above $($retail$,$ manufacturing, service$)$

d$)$ Information and knowledge workers only

$3.$ Which of the following is NOT a core function of an information system?

a$)$ Collecting data

b$)$ Processing data

c$)$ Storing information

d$)$ Distributing information

$4.$ Data differs from information because data is

a$)$ More organized and useful

b$)$ Collected from the environment

c$)$ Used for decision making

d$)$ The same as information

$5.$ The example with supermarket checkout counters and barcodes is used to illustrate the difference between:

a$)$ Input and output

b$)$ Data and information

c$)$ Processing and feedback

d$)$ Systems and organizations