Put the methods in order from highest to lowest according to Oracles order of precedence…

NLS parameters can be set using the five methods listed. Put the methods in order from
highest to lowest according to Oracles order of precedence:
a: Default setting
b: Client environment variable
c: Explicit ALTER SESSION statement
d: Inside SQL function
e: Server initialization parameter

A.
b, d, e, a, c

B.
e, a, b, c, d