47 According to the passage, which of the following can be inferred? (A) The lack of rice cultivation was the main cause of the instability of food supply to the Mla Bri. (B) Violent confrontations among the Mla Bri tribes were not uncommon due to their nomadic nature and lifestyle. (C) The Mla Bri’s permanent settlement before 1993 has resulted in their disproportionate land ownership. (D) The shift from a nomadic lifestyle to stable settlements might explain the suicide problems in the Mla Bri.