Question

how many shoes do you own?
number of students
pairs of shoes owned
options: 5, 6, 18, 19

Explanation:

Step1: Sum all student counts

Add the number of students in each category: $4 + 7 + 5 + 2 + 0 + 1$

Step2: Calculate total sum

$4+7=11$, $11+5=16$, $16+2=18$, $18+0=18$, $18+1=19$

Answer:

19