According to Rainier Wolfscastle, why can't he cry?

In "A Star is Born-Again", according to Rainier Wolfscastle, why can't he cry?


A-Only girlie men cry
B-His heart is as hard as Balkan basalt
C-Tears can't break through hismuscular tear ducts

Highlight for answer: C-Tears can't break through hismuscular tear ducts