As the Toronto-based Four Seasons hotel chain remodels an existing hotel in Mumbai to bring it to the five-star hotels exacting standards, it is building a magnificent revolving restaurant overlooking the Arabian Sea at World. The restaurant structure is an example of a (n) :

Horizontal expansion model

Explanation:

Renovation in Horizontal expansion model is one in which current business is upgraded with some new features to add value and another branch is opened to serve its customers. The customers needs are kept in mind before going for a renovation process.