[Help] C Programming - Can anyone suggest what should I make for my finals?

Hello! I'm a first-year college student and to be honest, I am the type who doesn't listen that much in class.

Now my prof told us to give him a proposal about what we will present and defend on finals.

I want to ask the pros here to suggest what's easy to create.

The prof once mentioned he created a bible verse finder. Some of my classmates have created one that calculates bills with tax etc..

Now I really have no idea what I should create.

Create a program that "calculates the average age of websites"

Download the majestic million, write the program to go on the list, and paste the line to a whois field, and get the age from there.

Collect the age data and average it.

Probably already exists but.. write something that is able to calculate the potential profit/loss of any wallet on a blockchain to determine potential sell pressure on a token