What is an important reason that dsm-5 has replaced the broad diagnostic category of "dementia" with the term "major neurocognitive disorder"?

According to the INESSS report in Quebec, the term dementia has been

replaced by 2 pathologies depending on the severity, to improve the classification of the dementias:

Mild neurocognitive disorders (TCL, MCI) and Alzheimer's disease and other major neurocognitive disorders (TNCM).

The term major neurocognitive disorder, (which replaced dementia in DSM-5), is characterized by a cognitive decline from previous performance level in one or more cognitive domains (complex attention, executive functions, learning and memory, language, perception-motor skills, social cognition) that interferes with independence in daily activities (diagnostic criteria).

The DSM-5 also defines a mild neurocognitive disorder that corresponds to what is commonly known as mild cognitive impairment.

hey, i believe your answer would be d. sugar ribose and the base uracil. i believe this is the answer, because rna consists of sugar ribose, adenine, guanine, cytosine, and uracil.

your first option is incorrect, because that's dna. where it consists of sugar deoxyribose, adenine, guanine, cytosine and thymine.

your second option is also incorrect, this is because sugar deoxyribose is in dna, and uracil is in rna. these two do not make sense together.

your third option being incorrect, because sugar ribose is in rna, but not the base of thymine. rna consists of uracil, not thymine.

lastly your fourth option being correct! this answer is correct, because both sugar ribose, and the base uracil are in rna! ~

answer is d. sugar ribose and the base uracil.