What is the epitaph in Weibei that only has ink calligraphy but has not been carved?

Tomb table of Mencius. "In Weibei, which epitaph was written in ink instead of engraved?" ? It is a multiple-choice question for Er Ya's calligraphy appreciation. The options are Mencius' Epitaph, Zhang Zhijun's Epitaph, Wang Xingzhi's Epitaph and Diao Zun's Epitaph. According to Er Ya's knowledge of calligraphy appreciation, the answer is Mencius' tomb table.