Important questions related to Facebook ads

[smusmanphotography]

Hello everyone. I am currently attempting a Facebook test related to ads. I have a difficulty in answering the following questions.
1 Why is it important to minimize the overlapping audience?
a To prevent multiple ads from competing for the same auction
b To eliminate seed lists that are not specific to business objectives
c To include existing customers in new campaigns
d To identify audiences by where they are in the lifecycle

2 When should custom audience be utilized in a campaign?
a When reaching audiences based on location
b When reaching audiences based on interests
c When reaching an existing customer base from data outside of facebook
d When reaching an existing customer base from data within facebook

3 What are two considerations when deleloping creative suitable for both Facebook and Instagram (Choose Two)
a Landscape images are not allowed
b Autoplay videos are allowed
c Images for carousel ads must be square
d Creative developed for facebook ads cannot be used on Instagram

Please help me regarding these questions. It will help others understand as well.

 

[JohnWeb]

Minimize the overlapping audience - I guess you could use this if you wanted to do a scientific test of experiment of how many % of people will actually buy something for a particular ad.

 

[Nizam18]

Carousels in square shapes is much preferred, It can be used for fn, Insta & whatsapp too