Correct

入籍

/ rùjí / 
Strokes

Definition

to become naturalized/to become a citizen

Example

As a Verb

be/become naturalized; acquire citizenship

1
Shēnqǐng
申请
rù
入
zhōngguójí
中国籍

apply for naturalization as a Chinese citizen

2
Rù
入
měiguójí
美国籍

become a naturalized US citizen