Natural Language Processing Engineer Question:

You have created a document term matrix of the data, treating every tweet as one document. Which of the following is correct, in regards to document term matrix?

Removal of stopwords from the data will affect the dimensionality of data
Normalization of words in the data will reduce the dimensionality of data
Converting all the words in lowercase will not affect the dimensionality of the data
A) Only 1
B) Only 2
C) Only 3
D) 1 and 2
E) 2 and 3
F) 1, 2 and 3