10 When humans find themselves censored, silenced, or frustrated by limits of their native tongues, they learn new languages. (A) Humans learn new languages when they lose interest in their native languages. (B) Given the fact that their native languages are obsolete in daily life, humans learn new languages. (C) Humans learn new languages when they find their native tongues inadequate for communication. (D) Humans learn new languages when they discover that their native tongues are forbidden.