Read the text and answer the question.
Climate Chronicle: Researchers studying the effects of prolonged drought on rural communities have found that the consequences go far beyond crop failure. In regions where drought has lasted more than two years, local economies collapse as farmers abandon their land. Young people migrate to cities in search of work, leaving behind ageing populations with no support. Health problems increase due to poor nutrition and lack of clean water. In some documented cases, competition over remaining water sources has led to violent conflicts between neighbouring communities. Experts emphasise that without early warning systems and long-term water management strategies, the social damage caused by drought can be irreversible.
Which of the following BEST summarises the central message of the text?
A)Drought is only a problem for farmers and has little effect on city life
B)The effects of prolonged drought extend beyond agriculture and can destroy communities socially and economically
C)Young people moving to cities is the main cause of drought in rural areas
D)Early warning systems are useless because drought damage cannot be prevented