himu wrote:Initially considered an inventor's mistake, a product informally known as the "sticky note," which can stick to a surface without adhering permanently, has become one of the best-selling office supplies in history.



A
Initially considered an inventor's mistake, a product informally known as the "sticky note," which can stick to a surface without adhering permanently,
CORRECT
B
Initially considered an inventor's mistake, the "sticky note," having the ability to stick to a surface without adhering permanently, a product informally known as the "sticky note"
The order of the sentence is wrong. "a product informally known as the "sticky note" is wrongly placed.
C
A product initially considered an inventor's mistake, informally known as the "sticky note," which can stick to a surface without adhering permanently,
"informally" could refer to the inventor mistake and not to the product.
D
A product initially considered an inventor's mistake, called the "sticky note," which has the ability to stick to a surface and without adhering permanently,
"has the ability and without adhering" does not mantain parallelism
E
A product that was initially considered an inventor's mistake and has the ability to stick to a surface and without adhering permanently, informally known as the "sticky note,"
no parallelism "was considered", "has the ability to ... and ... adhering"