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Refer to https://azure.microsoft.com/en-us/pricing/offers/azure-credit-offers/ and https://learn.microsoft.com/en-us/answers/questions/5549511/student-account-in-which-regions-can-i-deploy-a-vm
Azure for Students restricts which regions you can deploy resources to. Typically you are restricted to five different regions, and these vary for each person.
Please navigate to Azure Policy -- Authoring -- Assignments using link below:
https://portal.azure.com/#view/Microsoft_Azure_Policy/PolicyMenuBlade/~/Assignments
Click on assignment named Allowed resource deployment regions
Examine Allowed locations Parameter value for list of regions, similar to below (regions in screenshot are different than yours):
The regions shown in your Parameter value are the ones you are allowed to deploy resources to.
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hth
Marcin