When a pen and a book is demanded together, the demand is said to be? by Sunday | Aug 1 | Economics WAEC | 0 comments A. composite B. competitive C. joint D. derived Correct Answer: Option C – joint Users Also Read These:If elasticity of demand is greater than I and less…If the price of an item increases by 8% while the…What is the elasticity of demand for commodity X, if…In bank reconciliation, when a cash book shows a…Since money is demanded for what it can buy, the…