Kirsty makes orange-strawberry punch. The table shows how many parts orange juice and strawberry juice to make one batch.

Orange-Strawberry Punch
Parts Orange Juice
4
Parts Strawberry Juice
5

Kirsty decides to increase the strawberry juice by one part. What is the new ratio of strawberry juice to orange juice?
For every 4 parts orange juice there are 4 parts strawberry juice.
For every 5 parts orange juice there are 4 parts strawberry juice.
For every 4 parts orange juice there are 6 parts strawberry juice.
For every 5 parts orange juice there are 6 parts strawberry juice.