Hello everyone !
would you please kindly help me answer these Grammar Questions

1- Only after extreme territorial disputes usually involving females
_____ to killing each other.
A)male chimpanzees resort
B)do male chimpanzees resort
C)male chimpanzees resorted
D)resorting are male chimpanzees
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2- Chestnut bark disease may be controlled by a efficient pruning system, though this method is impractical with
________.
A)large trees, Japanese ornamental
B)Japanese large ornamental trees
C)ornamental Japanese large trees
D)large Japanese ornamental trees
the correct answer is D, why D and not C???
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3-
________ the larger markets, soil stability must be achieved through changing technologies.
In the Eastern states closely adjacent to
A)Closely in the Eastern states, adjacent to
B)Adjacent closely in the Eastern states,
C)Adjacent in the closely Eastern states,
why A??
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4- In the fiscal year 1910, the
________ was 16 cents per pound before it was distributed to retail outlets.
A)tea value of average import
B)import average value of tea
C)average import value of tea
D)average value of import tea
Thank you in advance.
*To be contintued.