"Question $2$

$1)$ Imagine you had a dictionary named $""$d$""$ which contained a single entry $-""$num$\_$pokemon"" : $5-$ which of the following could be used to delete this entry?

A$.$ del d$(5)$

B$.$ del d$(""$num$\_$pokemon""$)$

C$.$ del d$\{""$num$\_$pokemon""$\}$

D$.$ del d$[""$num$\_$pokemon""$]$

$2)$ Dictionaries $...$

A$.$ support a $1$:$1$ mapping $($i$.$e$.1$ key to $1$ VD$13$ value$)$

B$.$ are un$-$ordered

C$.$ are mutable

D$.$ all of the above

$3)$ Assume you have the following dictionary:

x $=\{\text{'}$a$\text{'}$: $5,\text{'}$b$\text{'}$: $10\}$

What is x$[\text{'}$b$\text{'}]?$

A$.5$

B$.10$

C$.$ undefined

D$.$ will generate runtime error"