Correct option is A
Statements:
(1) Some Grass is Green.
(2) All Green is Red.
(2) All Green is Red.
According to the given statements, Venn diagram will be:

Let's analyze all the Assumptions:
A. All Red is Green: (Not Implicit)
Since all green is red, but it does not imply that all red is green. Therefore, this assumption is not implicit.
B. Some Green is Grass: (Implicit)
This is implicit. Since some grass is green, it follows that some green is grass.
C. Some Grass is Red and Green: (Implicit)
This is implicit. Since all green is red, and some grass is green, that means some grass must be both red and green.
D. Some Grass is Red: (Implicit)
A. All Red is Green: (Not Implicit)
Since all green is red, but it does not imply that all red is green. Therefore, this assumption is not implicit.
B. Some Green is Grass: (Implicit)
This is implicit. Since some grass is green, it follows that some green is grass.
C. Some Grass is Red and Green: (Implicit)
This is implicit. Since all green is red, and some grass is green, that means some grass must be both red and green.
D. Some Grass is Red: (Implicit)
This is implicit. Since all green is red, and some grass is green, it follows that some grass must also be red.
The only assumption that is not implicit is All Red is Green.
Thus, the correct option is (a) All Red is Green
Thus, the correct option is (a) All Red is Green