The platform allows you to add more options/choices in a Multiple Choice Question. This is how it can be done:
Step 1: Log into your CG account
 Step 2: Click on Manage Tests on the Menu bar 
 Step 3: Select Test Template
 Step 4: Click on Edit next to the concerned test 
 Step 5: Select the Section for which you want to add MCQs
 Step 6: In the  MCQ dialogue box Click + Add MCQ at the bottom of the window, below the existing options.