A. You can use these machines only between 9 A.M and 5 A.M.
B. You can use these machines only 9 A.M and 5 A.M.
C. You can use this machines only between 9 A.M and 5 A.M.
D. You can use these machines just only between 9 A.M to 5 A.M.
Explanation: Machines বহুবচন (plural) বলে (C) সঠিক নয়। (B)- তে কোন preposition নেই এবং (D) ও (E) তে "just only" ও "between only" একসাথে ব্যবহার করা অপ্রয়োজনীয়। 'Between' should be paired with 'and', and 'only' is placed correctly in option A.
