You work as the application developer at Hi-Tech.com. You create a new custom dictionary named MyDictionary. Choose the code segment which will ensure that MyDictionary is type safe？（）
- A Class MyDictionary Implements Dictionary （Of String，String）
- B Class MyDictionary Inherits HashTable
- C Class MyDictionary Implements IDictionary
- D Class MyDictionary End Class Dim t as New Dictionary （Of String， String） Dim dict As MyDIctionary= CType （t，MyDictionary）