answer this question with using SQL

Using the commands SELECT, PROJECT, and JOIN write a sequence of instructions to answer each of the following questions about branches and their courses in terms of the following database: a. Which branches offer IT665? b. List all the branches present in Branch relation. c. Which branches offer 4 credit courses? Course relation CName ID Networks IT655 DataBase CS543 VLSI EC653 Branch relation BName ID Computer Science CS543 Computer Science EC653 Electronics & Communication 1T655 Electronics & Communication EC653 Information Technology CS543 Information Technology IT655 Credits 4 5 4 4