The correct answer is option (E):
Bumptious
The phrase "Having the habit of putting forward one's own view noisily without any regard for the feelings of others" describes someone who is offensively self-assertive or conceited. Let's examine the options:
Lissome means agile and graceful. This does not fit the description.
Gullible means easily deceived or tricked. This does not fit the description.
Desolate means deserted of people and in a state of bleak and dismal emptiness. This is an adjective describing a place, not a person's behavior.
Naïve means showing a lack of experience, wisdom, or judgment; innocent. While someone might express views without regard for others due to naivety, the core of the phrase points more towards an aggressive and overbearing self-importance.
Bumptious means self-important or arrogant in a loud and overbearing way. This directly aligns with the description of someone putting forward their views noisily and without regard for others' feelings.
Therefore, Bumptious is the most suitable one-word substitute.