下列关于睑板腺癌的描述，错误的是（）。

A.发生于睑板腺

B.早期类似睑板腺囊肿

C.易发生转移

D.多发生于老年人

E.起源于汗腺细胞

After decades of effort, the city is still trying to _____ how to ban smoking in public places. [ ]

A. put forward

B. get through

C. wrap up

D. figure out