A Platform App Builder is asked to create a sandbox for a developer.

Developer Pro satisfies both requirements. Salesforce ' s current sandbox reference states that a Developer Pro sandbox can be refreshed every one day and provides 1 GB of data storage by default, comfortably exceeding the required 250 MB. A standard Developer sandbox also has a one-day refresh interval, but its standard data-storage allocation is only 200 MB, so it does not satisfy the stated storage requirement without an additional storage upgrade. Partial Copy provides significantly more storage but can only be refreshed every five days. A Full sandbox mirrors production-scale data and storage but has a 29-day refresh interval. Therefore, Developer Pro is the only standard sandbox type among the choices that simultaneously supports at least 250 MB and daily refresh capability.

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