footboll=array(); is an example of: a. boolean b. None c. function d. empty array

EBK JAVA PROGRAMMING
9th Edition
ISBN:9781337671385
Author:FARRELL
Publisher:FARRELL
Chapter8: Arrays
Section: Chapter Questions
Problem 19RQ
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$footboll=array(); is an example of:
a.
boolean
b.
None
c.
function
d.
empty array
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