Which of these statements is true? agile is a programming language sql is a database language html stands for "hypertext markup link" java is short for javascript?

The answer is: SQL is a database language

SQL is programming language that is used when we want create a design and manage our data base. It is very important for programmers who want program using this language to have a good command in Tuple relational calculus and Algebra because it's often used to  handle structured data that has relations between different variables.

b and c ( ip address and port number)