Question:
(a) Differentiate between local variables and global variables in Lingo programming.
(b) Using examples differentiate between deleteProp() and deleteAt() functions.
(c) Write a handler to perform the following tasks in a property list.
(i) Initialise an empty property list.
(ii) Add one item in the list using the addProp() function.
(iii) Display the content of the property list.