The table below shows the computer time it takes to complete various tasks on the data of different sized towns.

Task

Small Town

$($population $1,000)$

Mid$-$sized Town

$($population $10,000)$

Large Town

$($population $100,000)$

Entering Data $2$ hours $20$ hours $200$ hours

Backing up Data $0\mathrm{.}5$ hours $5$ hours $50$ hours

Searching through Data $5$ hours $15$ hours $25$ hours

Sorting Data $0\mathrm{.}01$ hours $1$ hour $100$ hours

Based on the information in the table, which of the following tasks is likely to take the longest amount of time when scaled up for a city of population $1,000,000$

Entering Data

Backing up Data

Searching Through Data

Sorting Data