Choose from options: Determine if the sentence is true based on the text below:
Tillya tepe was excavated a year before 1978.

Tillya tepe, Tillia tepe or Tillā tapa (Persian: طلا تپه‎ ‎ ) or (literally "Golden Hill" or "Golden Mound") is an archaeological site in the northern Afghanistan province of Jowzjan near Sheberghan, excavated in 1978 by a Soviet-Afghan team led by the Greek-Russian archaeologist Viktor Sarianidi, a year before the Soviet invasion of Afghanistan. The hoard is often known as the Bactrian gold.
 (A). Yes; (B). It's impossible to say; (C). No;
(C).