Option 1: laconic -> means brief and concise, using few words.
Option 2: lacklustre -> means dull or uninspiring, lacking vitality.
Option 3: loquacious -> means very talkative, using many words.
Option 4: sagacious -> means wise or showing good judgment.
Hence, Option 1: laconic -> "Not believing in beating about the bush" means being direct and to the point without unnecessary elaboration. A laconic writing style is brief and concise, which perfectly matches someone who avoids being indirect or verbose -> correct