The correct answers are A, B and C.
An illuminated manuscript is a manuscript in which the text is supplemented with the addition of decoration, such as decorated capital letters, borders and miniatures. In the strictest definition of the term, an illustrated manuscript is only that which has been decorated with gold or silver. However, the concept now covers any manuscript with illustrations or decoration of Western and Islamic traditions.
The oldest illuminated manuscripts that still survive date from the period 400-600 AD, elaborated mainly in Ireland, Italy, Spain and other places of the European continent.