In SQL queries, what does the statement "Only aggregate expressions use field aliasing" imply?
a) Field aliasing is exclusively applied to aggregate functions such as SUM, AVG, COUNT, etc., to provide more readable column names in the result set.
b) Field aliasing can only be used with non-aggregate columns to differentiate between them.
c) Aggregate expressions cannot be aliased, and only non-aggregate expressions can use field aliasing.
d) Field aliasing is not applicable in SQL queries that involve aggregate functions.