Which of the following is NOT mentioned as an important factor in improving memory().

A.It was held in 1986.
B.The disputed goal occurred in the quarterfinals.
C.The score between Argentina and England was 2 to 1.
D.Argentina eventually lifted the World Cup with the score of 2 to 1.

A. In the early to mid 18th century.
B. In the early to mid 19th century.
C. In the early 19th century.
D. In the early 18th century.