Does the sentence "Instruction at all levels is in French, and the educational system as a whole models the French system." provide a valid answer to the question "What language is used in Congolese schools?"

A: yes

Does the sentence "In 1951, during the early stages of the Cold War, Menzies spoke of the possibility of a looming third world war." provide a valid answer to the question "Where was the signing of the ANZUS Treaty held in 1951?"

A: no

Does the sentence "The contracts are carried on the asset side of the European Central Bank's balance sheet and the resulting deposits in member banks are carried as a liability." provide a valid answer to the question "Where are contracts recorded?"

A: yes

Does the sentence "A database is not generally portable across different DBMSs, but different DBMS can interoperate by using standards such as SQL and ODBC or JDBC to allow a single application to work with more than one DBMS." provide a valid answer to the question "What is the purpose of a DBMS?"

A:
no