In ASL, The sign for "pizza" can vary depending on the person signing because different types of pizza from different regions exist
some signers add NMMs to express a like or dislike of pizza
there are regional dialects within the Deaf community
the sign for pizza is very new to sign language vocabulary

The answer is there are regional dialects within the Deaf community.

answer: we can define a cultural region as a section of a land with cultural elements like religion, language, cuisine or architecture. cultural regions are different because its land for example can vary in size of few square miles to millions. they can also form cultural boundaries.

moreover cultural regions can be organized due to less difference between the same ethnic group. we can say also that exist three types of cultural regions such as the formal, functional and vernacular ones. for istance the formal regions refers to sharing cultural traits of people like religion or languages.

explanation: