Correct

放还

/ fànghuán /
Strokes

Definition

to release (a hostage)/to put back in place

Example

As a Verb

release; let go

1
Jiāo
bǎo
fàng
huán

release on bail

2
Fàng
huányuán
还原
zhǔ

return sth to its owner

3
Fàng
huán
rénzhì
人质

free/release a hostage

As a Verb

place back; replace

4
shūfàng
书放
huányuán
还原
chù
  

Put the book back. / Place the book where it was.