Complete the Using Data Visualization for the DOW Stock Index exercise $($Chapter $3$ ADAS Exercise $3)$ before answering this question. Indicate which of the two maps is smaller on the Treemap chart $($ie$,$ which day had the least shares traded?$)$

$\frac{3}{15}\frac{?}{2019}$

$1/15/2019$

$2/15/2019$

$4/15/2019$