Задание 30 из ЕГЭ по английскому языку: задача 538

Запишите, на месте пропуска, цифру 1, 2, 3 или 4, соответствующую выбранному Вами варианту ответа.

An interior designer is a designer who designs interior spaces. The profession of interior design is not clearly defined and projects ____________ by an interior designer vary widely. Terms such as decorator and designer are often used interchangeably. However, there is a distinction between the terms that relates to the scope of work performed, the level of education achieved, and often, professional accreditation as an interior designer.

1. taken up
2. taken upon
3. undertaken
4. taken apart