A survey of $18$ pharmacy technicians recorded the number of hours they worked last week:
$283234363230313436503533323448423034$
Display the data using a stem-and-leaf plot and describe any patterns.

• A. Most pharmacy technicians worked between $30$ and $39$ hours, with most values clustered in the lower $30$s
• B. Most pharmacy technicians worked between $30$ and $39$ hours, with most values clustered in the lower $30$s
• C. Most pharmacy technicians worked between $40$ and $49$ hours, with most values clustered in the upper $40$s
• D. Most pharmacy technicians worked between $40$ and $49$ hours, with most values clustered in the upper $40$s

Answer: (B)