The giant redwood tree (Sequoia sempervirens) is a/an

Options

A. angiosperm
B. free fern
C. pteridophyte
D. gymnosperm

Explanation

**Step-by-Step Solution:**

1. **Identify the Scientific Name**: The giant redwood tree is scientifically known as Sequoia sempervirens.

2. **Determine the Plant Category**: We need to classify Sequoia sempervirens into its appropriate plant category.

3. **Recall Characteristics of Gymnosperms**: Gymnosperms are a group of plants that typically have:
- Thick, woody branched stems.
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