Question 4. :)
https://docs.google.com/presentation/d/1SqlxViv9M3kHGtx0R4qGbMip4uSA4vJUwlZ4wXr1-hE/edit?usp=sharing My slides for Question 4.
https://docs.google.com/presentation/d/1SqlxViv9M3kHGtx0R4qGbMip4uSA4vJUwlZ4wXr1-hE/edit?usp=sharing My slides for Question 4.