To estimate the total cost of the milk and eggs to the nearest one's place:
- Milk costs $3.67, which can be estimated to $4.00.
- Eggs cost $2.40, which can be estimated to $2.00.
Now, add the estimated costs:
$4.00 (milk) + $2.00 (eggs) = $6.00
So the estimated total cost is approximately $6.00.
The closest option to this estimate is $6.