var data = {
    colHeaders: [
        {text: "Bioethanol: alcohol"},
        {text: "Biodiesel: vegetable and animal oils"},
        {text: "Biogas: methane and other gases"}
    ],
    choices: [
        {text: "palm oil"},
        {text: "fermentation of sugar cane"},
        {text: "decomposition of pig manure"},
        {text: "waste vegetable cooking oil"},
        {text: "fermentation of corn"},
        {text: "fermentation of switchgrass"},
        {text: "oilseed rape"},
        {text: "decomposition of switchgrass"},
        {text: "lard"}
    ],
    answers: [
        {text: ["palm oil", "td1"]},
        {text: ["fermentation of sugar cane", "td0"]},
        {text: ["decomposition of pig manure", "td2"]},
        {text: ["waste vegetable cooking oil", "td1"]},
        {text: ["fermentation of corn", "td0"]},
        {text: ["fermentation of switchgrass", "td0"]},
        {text: ["oilseed rape", "td1"]},
        {text: ["decomposition of switchgrass", "td2"]},
        {text: ["lard", "td1"]}
    ],
    feedback: [
        {text: "All of your answers are correct."},
        {text: " of your answers are correct."},
        {text: " of your answers is correct."},
        {text: " The correct answers are now shown."}
    ]
};