Answer
We expect the formation of Zaitsev product because the reaction does not employ a sterically hindered base.
Work Step by Step
The double bond is formed between α and β positions. Because β position has only one proton we expect this reaction to be stereospecific, rather than stereoselective.
After drawing the Newman projection we need to draw the conformation in which H (on position β) and leaving the group (Cl; on position α) are antiperiplanar because E2 reactions proceed in this conformation.
Newman projection shows us the stereochemical outcome.
