**Core Concept**
The question tests the knowledge of radiation tolerance of various tissues in the body. Radiation tolerance is the maximum dose of ionizing radiation that a tissue can withstand without suffering damage. Different tissues have varying levels of radiation tolerance, and knowledge of these limits is crucial for radiation therapy and protection.

**Why the Correct Answer is Right**
Bone tissue has a relatively high radiation tolerance compared to other tissues. This is because bone cells, or osteocytes, are relatively resistant to radiation-induced damage. However, prolonged exposure to high doses of radiation can still cause bone damage, including osteoporosis and increased risk of fractures. The radiation tolerance of bone tissue is typically considered to be around 50-60 Gy (Gy = Gray, a unit of absorbed radiation dose).

**Why Each Wrong Option is Incorrect**
**Option A:** Hemopoietic tissue, which includes bone marrow, has a low radiation tolerance of around 2-4 Gy, making it highly susceptible to radiation damage. Prolonged exposure can lead to bone marrow failure, anemia, and increased risk of infections and bleeding.

**Option B:** Testis tissue has a relatively low radiation tolerance of around 0.1-0.2 Gy, making it highly sensitive to radiation damage. Exposure to radiation can cause testicular atrophy, infertility, and increased risk of testicular cancer.

**Option C:** Ovary tissue also has a low radiation tolerance of around 1-2 Gy, making it susceptible to radiation damage. Exposure to radiation can cause ovarian failure, infertility, and increased risk of ovarian cancer.

**Clinical Pearl / High-Yield Fact**
It's essential to note that radiation tolerance can vary depending on the type of radiation, dose rate, and duration of exposure. Additionally, young children and pregnant women are more sensitive to radiation damage than adults.

**✓ Correct Answer: D. Bone. Bone tissue has a relatively high radiation tolerance compared to other tissues.**