The correct answer is - Cornell University.
According to this article, the institution that collected the information and conducted the research is Cornell University, as it is stated at the beginning of the article itself.
The problem with the decline in the honeybee populations globally, is an extremely serious matter. Often overlooked by most of the people, but the honey bees are crucial for the survival for most of the ecosystems on the planet. If the honeybees are not there to pollinate the plants, most of the ecosystems on the planet will fall apart. The humans will be heavily affected and will be on the verge of existence as a species, and the reason would not so much be the economical problems, but the lack of food.