She is stubborn and willful.
Advantage: You don’t have to wake up extra early to go into work.
Disadvantage: Before, we were always on a schedule. Now, you/we may not be running on one since we are at home.
I’ll help you later, after I done my homework
C - The Leaning Tower of Pisa, which started construction in 1173, did not begin sinking into the ground until the third story was built.
The use of commas sets off the dependent clause (which started construction in 1173).