Why the answer is A, and why the others tempt you.
## The reasoning
**Mono-cropping** means cultivating **only ONE type of crop** on a piece of land during a growing season. The prefix "mono-" means "single" or "one." So when you plant cassava alone across your entire farm without mixing it with any other crop, that's mono-cropping. It's the simplest farming system—one crop, one field, one harvest cycle.
## Why the wrong options tempt you
**Options B, C, and D** all involve **multiple crops** grown together:
- **Yam-and-maize** = two crops (intercropping)
- **Maize-and-beans** = two crops (also intercropping)
- **Vegetable garden** = multiple vegetables (mixed cropping)
The trap here is thinking about common Nigerian farming practices. Many farmers DO mix crops, so these options feel familiar. But the question specifically asks for **mono**-cropping, which is the opposite of mixing.
## Quick takeaway
**Mono = one.** If you see any combination or mixture of crops, it's NOT mono-cropping—only a single crop standing alone qualifies.
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