Correct

旗下

/ qí xià /
Strokes

Definition

under the banner of

Example

As an Adverb

under the banner; as a subordinate or subsidiary

1
Gāi
gōng
公司
xià
旗下
yǒu
èrshí
二十
duō
jiā
hǎiwài
海外
gōng
子公司
  

The company has over twenty overseas subsidiaries.