The right explanation

{"params":{"media":{"disableImageZooming":false},"content":{"task":"<p>Match each adjectives with the correct definitions.<\/p>\n","blanksList":[{"correctAnswerText":"worried or frightened that something unpleasant may happen"},{"correctAnswerText":"suitable, acceptable or correct for particular circumstances"},{"correctAnswerText":"used for one particular purpose only"},{"correctAnswerText":"certain to happen and unable to be avoided or prevented"},{"correctAnswerText":"able to be seen, touched or experienced"},{"correctAnswerText":"never having happened or existed in the past"}],"blanksText":"<p>1. <strong>apprehensive<\/strong> \u2192 ______<\/p>\n\n<p>2. <strong>appropriate<\/strong> \u2192 ______<\/p>\n\n<p>3. <strong>dedicated<\/strong> \u2192 ______<\/p>\n\n<p>4. <strong>inevitable<\/strong> \u2192 ______<\/p>\n\n<p>5. <strong>tangible<\/strong> \u2192 ______<\/p>\n\n<p>6. <strong>unprecedented<\/strong> \u2192 ______<\/p>\n"},"overallFeedback":[{"from":0,"to":100}],"behaviour":{"mode":"selection","selectAlternatives":"all","selectAlternativeRestriction":0,"spellingErrorBehaviour":"mistake","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"}},