Which of the following correctly summarizes the work of archaeologists in the Indus Valley?

A. Eighteenth-century archaeologists deciphered the writing of the Indus Valley civilization.
B. Twentieth-century archaeologists unearthed many artifacts near the Indus River.
C. Recent digs uncovered huge temples and scrolls.
D. Continual work over many centuries in Indus Valley ruins yielded clues to the civilization.

Question

Which of the following correctly summarizes the work of archaeologists in the Indus Valley?
  
    A.  Eighteenth-century archaeologists deciphered the writing of the Indus Valley civilization.  
    B.  Twentieth-century archaeologists unearthed many artifacts near the Indus River.  
    C.  Recent digs uncovered huge temples and scrolls.  
    D.  Continual work over many centuries in Indus Valley ruins yielded clues to the civilization.