Cultivation of pearls was pioneered by

Options

A. Mikimoto
B. Hoshimoto
C. Yabuta
D. Kurosawa.

Answer

### Step-by-Step Solution:

1. **Identify the Question**: The question asks who pioneered the cultivation of pearls.

2. **Review the Options**: The options provided are:
- 1st: Mikimoto
- 2nd: Hoshimoto
- 3rd: Yabuta
- 4th: Kurosawa

3. **Recall Relevant Information**: The cultivation of pearls was first pioneered by Mikimoto Kokichi, a Japanese entrepreneur known for creating the first cultured pearl.

4. **Provide Background Information**: Mikimoto was born on January 25, 1858, in Toba, Japan. He started the first pearl oyster farm in 1888 after recognizing the need for an alternative method to produce pearls due to high demand and limited supply.

5. **Explain the Process**: Mikimoto's method involved seeding oysters with a small piece of mother of pearl, which led to the formation of cultured pearls.

6. **Conclude with the Correct Answer**: Based on the information, the correct answer to the question is option 1: Mikimoto.