Which of the following statements about Weaver’s Crop Combination Method are correct?
A. Weaver’s method calculates the deviation between real and theoretical crop percentages.
B. The method calculates deviations for all possible crop combinations in a region.
C. The method was first applied in India for studying crop combinations in Gorakhpur.
D. Weaver’s method was introduced in 1954 and initially applied to the Middle West of the USA.
Choose the correct answer:
1
A and B
2
B and D
3
A, B, and D
4
A, C, and D