有哪位G友能帮我解释下这道语法题，谢谢

hbj899

Question 52 of OG 13

To Josephine Baker, Pairs was her home long before it was fashionable to be expatriate, and she remained in France during the Second World War as a performer and an intelligence agent for the Resistance.

a) To Josephine Baker, Pairs was her home long before it was fashionable to be expatriate,

b) For Josephine Baker, long before it was fashinable to be an expatriate, Pairs was her home,

c) Josephine Baker made Paris her home long before to be an expatriate was fasionable,

d) Long before it was fashionable to be an expatriate, Josephine Baker made Pairs her home,

e) Long before, it was fashionable being an expatriate, Pairs was home to Josephine Baker,


请问，选项d “long before it was fashionable to be an expatriate" 是什么意思， it 是指代Pairs 吗？ expatirate 是说 Josephine Baker  吗？