The answer is option 2, Angkor Wat. The reason for this is recent history wherein Indian expertise was actually utilized in the maintenance and restoration of Angkor Wat monuments, which are in Cambodia. When considering the other options to understand why they are not the correct answer: Option 1, Jerusalem, is not correct because there have been no recent reports or history of Indian expertise being used there for archaeological restoration. Option 3, Rome, is also not the correct answer for the same reasons. Option 4, Yucatan, which is in Mexico, also does not have any recent evidence of using Indian expertise for archaeology restorations. Therefore, based on the question and the information available, it is established that only Angkor Wat has recently employed Indian expertise for archaeological restorations.