What do the statements mean?

{"params":{"media":{"disableImageZooming":false},"content":{"task":"<p>The following sentences contain expressions from the article. Match each sentence to the statement that best expresses its meaning.<\/p>\n","blanksList":[{"correctAnswerText":"It\u02bcs decreasing."},{"correctAnswerText":"It\u02bcs something people disagree on."},{"correctAnswerText":"The decision was very close."},{"correctAnswerText":"It can be shown that it was wrong."},{"correctAnswerText":"It\u02bcs expected to make a decision."}],"blanksText":"<p><span style=\"font-size:1.125em;\">A. It\u02bcs on the decline.<br>\n&nbsp;______<\/span><\/p>\n\n<p><span style=\"font-size:1.125em;\">B. It\u02bcs a contentious issue.<br>\n&nbsp;______<\/span><\/p>\n\n<p><span style=\"font-size:1.125em;\">C. They were narrowly confirmed.<br>\n&nbsp;______<\/span><\/p>\n\n<p><span style=\"font-size:1.125em;\">D. It\u02bcs demonstrably erroneous.<br>\n&nbsp;______<\/span><\/p>\n\n<p><span style=\"font-size:1.125em;\">E. It\u02bcs set to rule on the case.<br>\n&nbsp;______<\/span><\/p>\n"},"overallFeedback":[{"from":0,"to":100}],"behaviour":{"mode":"selection","selectAlternatives":"all","selectAlternativeRestriction":0,"spellingErrorBehaviour":"warn","caseSensitive":false,"autoCheck":false,"enableSolutionsButton":true,"showSolutionsRequiresInput":false,"enableRetry":true,"enableCheckButton":true,"confirmCheckDialog":false,"confirmRetryDialog":false},"showSolutions":"L\u00f6sung anzeigen","tryAgain":"Wiederholen","checkAnswer":"\u00dcberpr\u00fcfen","submitAnswer":"\u00dcbermitteln","notFilledOut":"Bitte f\u00fclle alle L\u00fccken aus, um die L\u00f6sung ansehen zu k\u00f6nnen","tipLabel":"Tipp","spellingMistakeWarning":"\u00dcberpr\u00fcfen Sie die Rechtschreibung","scoreBarLabel":"Du hast :num von :total Punkten erreicht","confirmCheck":{"header":"Beenden?","body":"Ganz sicher beenden?","cancelLabel":"Abbrechen","confirmLabel":"Beenden"},"confirmRetry":{"header":"Wiederholen?","body":"Ganz sicher wiederholen?","cancelLabel":"Abbrechen","confirmLabel":"Best\u00e4tigen"}},"metadata":{"license":"U"}},