B. By being a definite or specific event. (There is elaborately detailed information about the object. In other words, the object must be modified by an attributive clause or other elaborate modifiers.)
Wǒ kàn-lezuótiān wǎnshang de guójì xīnwén. 我看了昨天晚上的国际新闻。 I watched last night's international news.
Wáng tàitai gěi wǒ kàn-letā zài Rìběn mǎi de nèi běn xīn chūbǎn de Rì-Hàn zìdiǎn. 王太太给我看了她在日本买的那本新出版的日汉字典。 Mrs. Wang showed me the newly published Japanese-Chinese dictionary that she had bought in Japan.
In examples 1 and 2, much detailed information is given about the objects xīnwén新闻 and zìdiǎn字典, which makes them very specific. The news is not any news; it is the yesterday-evening-international news. The dictionary is not any dictionary out there in the world; it is the she-bought-in-Japan-that-copy-of-newly-published-Japanese-Chinese dictionary.