The correct answer is 'It is possible to copy 40 pages of a 100-page book.' The guide states that you can copy 'a portion of a work (not exceeding half).' 40 pages is less than half of 100 pages, so this is permitted. Copying personal notes is not allowed ('You cannot copy materials you bring in'). Copying the latest issue of a magazine is forbidden ('The latest issue of a magazine...cannot be photocopied'). For A3 size color copies, the fee is 80 yen, not 50 yen ('Color: ... 80 yen (A3)').