First create a simple dataframe using the below code.

import pandas as pd

# create a list of lists

data $=[[\text{'}$A$1\text{'},2,4,8],[\text{'}$A$2\text{'},3,7,17],[\text{'}$A$3\text{'},1,$ None, $7],[\text{'}$A$4\text{'},989,186,3698],[\text{'}$A$5\text{'},0,0,$None$]]$

# Create the pandas DataFrame

df$=$ pd$.$DataFrame$($data$,$ columns$=[\text{'}$ID$\text{'},$ 'Value $1\text{'},$ 'Value $2\text{'},$'Value $3\text{'}])$

df

Questions:

If you ran:

df $=$ df$.$dropna$()$

df

How many rows would remain in the dataframe?

Group of answer choices

$4$

$1$

$3$

$6$

$2$