Exercise $1$: Suppose we have the following list:

$x=[5,10,3,2,8,0]$

a$)$ what is $x[$:$2$:$-1]?$

b$)$ explain what would be the "start" when it is not specified in slicing and the stride is negative. Why does it make sense?

Exercise $2$: Suppose we have the following list:

$a=[1,2,3,4]$

Which of the following creates a list with elements being the corresponding elements of $"$a$"$ added to $1?$

A$)a+1$

B$)a+[1,1,1,1]$

C$)$ for $i$ in $a$

D$)a+1$

Exercise $3$: Suppose we have the following dictionary:

a$)$ Write a piece of code that loops through the values of this dictionary and makes the first letter in each word upper case $($hint: check out string.title$()$ method$).$ The output should look like this:

value $=$ Good