Tallest means the highest in height among others.

• A. Tallest
• B. Shortest
• C. Heavy
• D. Bright

Answer: (A)

Understanding what tallest means helps you pick the option that truly matches “the highest in height.” Tallest identifies the object with the greatest vertical size in a group, so it directly conveys the idea of maximum height. The other terms point to different attributes: shortest is the least height, heavy is about weight, and bright describes light or illumination. So, tallest is the best answer because it precisely names the highest in height among the items being compared.