@ Matthew Enirayetan
Although many of our questions (especially in newer tests and more recent mock tests) do have full explanations, some questions do not currently have explanations. This is often due to the question not really needing much more explanation once the correct answer is revealed. However, when there is an explanation, it will be shown. If there are specific questions for which you need explanations, you can of course let us know the question IDs (shown at the top right of the question starting with ‘qid-‘) in the forum and we will request that these explanations get prioritised.