A common characteristic feature of plant sieve tube cells and most of mammalian erythrocytes is

Options

A. absence of mitochondria
B. presence of cell wall
C. presence of haemoglobin
D. absence of nucleus

Explanation

To answer the question regarding the common characteristic feature of plant sieve tube cells and most mammalian erythrocytes, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Cell Types**:
- We are comparing two types of cells: plant sieve tube cells and mammalian erythrocytes (red blood cells).

2. **Understand the Functions**:
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