Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: An urgent headcount has taken place at a Thai temple that's home to 147 tigers in the care of monks after a vet complained to authorities that three were missing. Wat Pha Luang Ta Bua in Thailand's western Kanchanaburi province - commonly known as 'The Tiger Temple' - has long proved a hit among tourists who flock there to visit the monks and be photographed next to their huge feline pets. However, Thai wildlife officials began a headcount on Friday after allegations from a temple vet earlier this week who complained to police that three tigers had recently disappeared from the sanctuary, sparking fears they may have been sold on.Wat Pha Luang Ta Bua - 'Tiger Temple' - has long been a hit with touristsThey flock there to visit the Buddhist monks and their huge feline petsHowever, a vet recently alerted officials to three tigers being missing 
 Question:_ personnel walk tigers back to their enclosure after they had their chip implants read.

Wat Pha Luang Ta Bua