Which statement is not true?

A) Abstract data types like stack and queue support code-reuse so people can use them in problemsolving without implementing them repeatedly

B) Abstract data types like stack and queue support their alternative implementations so existing projects can benefit from their new more efficient implementations

C) Abstract data types like stack and queue support divide-and-conquer so projects for their implementation and usage can progress in parallel

D) Abstract data types like stack and queue ensure their more efficient implementation