ScrollingActivity.java

 if (options.size() < 5) {
            final int optionSize = options.size();
            for (int i = 0; i < 4 - optionSize; ) {
                boolean toAdd = true;
                for (int a = 0; a < optionSize; a++) {
                    if (options2.get(i).getTitle().equals(options.get(a).getTitle())) {
                        toAdd = false;
                        break;
                    }
                }

                if (toAdd) {
                    options.add(options2.get(i));
                    i++;
                }
            }
        }