1 Guarantor for multiple Tenants

Apologies if this is a super basic question (new landlord here) but: Can an AST contract have 1 Guarantor for multiple Tenants?
I understand that all Tenants will be jointly responsible for the Rent, and that also include the Guarantor or Guarantors. Thanks.

in short yes you can have as many or as few guarantors as you wish

It will depend on the wording of your agreement of guarantor. Does it state that the guarantor will guarantee only a portion of the rent or guarantee the rent of a joint tenancy agreement. The wording needs to be clear and state that guarantor was given time to seek advice as to the meaning. If not the courts may find against you.