Excerpt from avian flu
u. s. agency for international development

3) "the united states is already supporting efforts to develop animal surveillance and build diagnostic and laboratory capacity in at least 25 countries," said dr. dennis carroll, director of usaid's avian and pandemic influenza response unit. "the gains program is an extension of our important work. the information gains produces will feed into systems to warn people about the movement of avian influenza. this network will significantly bolster our ability to support the international community in response to the virus."

in paragraph 3, which aspect of gains explains why they are to the cause?
a) gains and usaid do exactly the same thing, so they can consult each other when either has a problem.
b) they are the program that supplies the u. s. government with the financial backing that makes the donation possible.
c) they are an extension of usaid, so without their efforts in warning people about where the flu is moving, the flu may spread.
d) the information gains is able to gather is different than what other international agencies are gathering because gains gets the information faster.