PhonePe completes separation from Flipkart

Current Context: PhonePe which is acquired by Walmart-owned Flipkart completes its separation from the parent company.

PhonePe was acquired by Flipkart in 2016.
PhonePe changes its domicile from Singapore to India in 2022.
It has a customer base of nearly 400 million.
Walmart acquired Flipkart in 2018, so both Flipkart and PhonePe came under Walmart.
Now, PhonePe has completed its separation from Flipkart and become a fully India-domiciled company.
As of now, Walmart has the majority of shares in both Flipkart and PhonePe.
So both will operate under the US-based retail giant Walmart.
Static Part:

Question:

Q.1 PhonePe was acquired by Flipkart in which year?
a. 2015
b. 2016
c. 2017
d. 2018