qobjects = [ { question: "True or False. Dense Array is a data set where most of the items are zero.", options: [ "True", "False" ], correct: 1 }, { fillintheblanks: "exercise_sparse_data1.htm" }, { fillintheblanks: "exercise_sparse_data2.htm" }, { fillintheblanks: "exercise_sparse_data3.htm" } ]