题目内容：
根据下列短文，回答题。For generations，the Nganyi people of western Kenya have served as rainmarkers，helpinglocal communities decide when best to prepare their land and SOW their seeds．By observingsubtle changes in nature that would be unnoticeable to most people--in air currents，theflowering and shedding of leaves of certain trees，the behaviour of ants，bird songs，etc-theyhave been able to interpret weather paterns and provide valuable advise．
But the irregular weather patterns brought by climate change mean the rainmakel's can nolonger use those signs to make their predictions．And they don't have accDs8 to the technologiesavailable to meteorologists(气象学家)．
“ Climate change‘has come on so fast．People don’t know how to adapt or what．to plant，”says Obedi Osore．a traditmnal Nganyi weatherman．“0ur traditional crops are disappearingbecause thev cannot handle the new conditions．We need new strategies to handle climatechange．”
Now a．British Canadian project is doing just that，linking the rainmakers with governmentmeteorologists．The two groups get together each season and produce all agreed forcast to bespread using a variety of methods suited to communities where many cannot read on wnte—through ceremonies，public meetings and person to person communication.
Both Darties arepleased with the collaboration．“I think the-two,sciences are equallyvalid．We are marrying our energies to help people better．”says Mr．Onunga，a Nyanyicommunity elder involed in the project．
“results have been surprisingly good-the community agreed that the forcast was
accurate．”savs Gilbert Ouma，a lecturer at the University of Nairobi．
“Through this project we hope to learn what it is that we can share together to live today and to adopt to tomorrow．”says Professor Laban Ogallo，leader of the Nganyi projeet．
Which of the following has been used by traditional Nganyi rainmarkers in weather prediction? A．Plant seeds
B．Dog barks
C．Bird songs
D．Ocean currents
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