In the UK, ______ act as a divide and determine whether rivers flow west to the Irish Sea or east to the North Sea.
A. Botany Bay
B. The Immigration and Nationality Act
C. the Highlands
D. Shannon
E. Thursday
F. the Act of Union
G. Africa
H. Friday
I. Glenn E. Curiss
J. Jennifer Shipley
K. The Lord of the Rings
L. Asia