To answer this question, you need to know about the tallest tree species in the world.
Option A) Coast Redwood - This option is correct. The Coast Redwood (Sequoia sempervirens) is indeed the tallest tree species in the world. These trees can grow up to 379 feet (115.7 meters) tall.
Option B) Sitka Spruce - This option is incorrect. While the Sitka Spruce (Picea sitchensis) is a tall tree species, it is not the tallest tree in the world.
Option C) Manna Gum - This option is incorrect. The Manna Gum (Eucalyptus viminalis) is a species of eucalyptus native to southeastern Australia. While it can grow to impressive heights, it is not the tallest tree in the world.
Option D) Giant Sequoia - This option is incorrect. The Giant Sequoia (Sequoiadendron giganteum) is one of the largest tree species in terms of volume, but it is not the tallest tree in the world.
The correct answer is A) Coast Redwood. These trees are known for their impressive height and are the tallest tree species in the world.