Answer:
num
Explanation:
In java reserved words are also known as keywords, keywords are reserve words for a language that can't be used as an identifier(name of a class, name of a variable, name of an array etc.) int, public static, are reserve words.
In given question num is not a reserved word.
# is used to begin a comment.
Answer:
A
Explanation:
I am not 100% sure but without the shaping data, data can still be merged from multiple sources.