betterscore wrote:
While many people think of genetic manipulation of food crops as being aimed at developing larger and larger plant varieties, some plant breeders have in fact concentrated on discovering or producing dwarf varieties, which are roughly half as tall as normal varieties.
Which of the following would, if true, most help to explain the strategy of the plant breeders referred to above?
(A) Plant varieties used as food by some are used as ornamentals by others.
(B) The wholesale prices of a given crop decrease as the supply of it increases.
(C) Crops once produced exclusively for human consumption are often now used for animal feed.
(D) Short plants are less vulnerable to strong wind and heavy rains.
(E) Nations with large industrial sectors tend to consume more processed grains.
Type : Explain a Discrepancy
OG2017 CR557 P514
I reviewed this question after marking the incorrect answer and realised my mistake. Explaining it below for anyone who thought A should have been the answer.
The pre-thinking scenario makes it clear that we are looking for a reason why growing dwarf plants is actually a valid strategy. However, let's note here that characteristic of the dwarf plants here is that the plants itself grow only half the length of normal plants. It doesn't say anything about the actual food crop and whether its size gets impacted in any way.
With that in mind, clearly the answer cannot be A. This is because when we don't know if the actual food is getting smaller, we cannot assert that it is being used for ornamental purpose.