The correct answer is C. 10 – 30 meters.
Coniferous trees are a type of tree that have needle-like leaves and cones. They are typically found in cold climates and can grow to be very tall. The height of coniferous trees can vary depending on the species, but most are between 10 and 30 meters tall.
Option A is incorrect because it is too low. The height of coniferous trees is typically much greater than 5 meters.
Option B is incorrect because it is too high. The height of coniferous trees is typically much less than 35 meters.
Option D is incorrect because it is too high. The height of coniferous trees is typically much less than 50 meters.