The code sample

//DATAIN DD DISP=OLD,DSN=MY.INPUT1 //DD DISP=OLD,DSN=MY.INPUT2 // DD DISP=SHR,DSN=YOUR.DATA

is an example of

a. System output

b. Concatenation

c. A PROC

d. Continuation

In JCL, the JOB statement

a. Provides the inputs and outputs of the job

b. Provides the name of the program to execute

c. Provides the name of the job

d. Says when the job is to be run