Among the complex ions,
`[Co(NH_(2) - CH_(2) - CH_(2) - NH_(2))_(2) Cl_(2)]^(+), [CrCl_(2) (C_(2)O_(4))_(2)]^(3-)`
`[Fe(H_(2)O)_(4) (OH)_(2)]^(+), [Fe(NH_(3))_(2) (CN)_(4)]^(-)`,
`[Co (NH_(2) - CH_(2) - CH_(2) - NH_(2))_(2) (NH_(3)) Cl]^(2+)` and
that show(s) cis-trans isomerism is

Answer

To determine which of the given complex ions show cis-trans isomerism, we will analyze each complex based on its structure and ligand arrangement.

### Step-by-Step Solution:

1. **Identify the Complex Ions**:
We have the following complex ions:
- `[Co(NH2-CH2-CH2-NH2)2Cl2]^(+)`
- `[CrCl2(C2O4)2]^(3-)`
- `[Fe(H2O)4(OH)2]^(+)`
- `[Fe(NH3)2(CN)4]^(-)`
- `[Co(NH2-CH2-CH2-NH2)2(NH3)Cl]^(2+)`

2. **Analyze the First Complex**:
- **Complex**: `[Co(NH2-CH2-CH2-NH2)2Cl2]^(+)`
- **Type**: This is a MA2B2 type complex (where A is the bidentate ligand ethylenediamine (en) and B is the monodentate ligand Cl).
- **Isomerism**: This complex can exhibit both cis and trans isomerism due to the arrangement of the bidentate ligands.

3. **Analyze the Second Complex**:
- **Complex**: `[CrCl2(C2O4)2]^(3-)`
- **Type**: This is also a MA2B2 type complex (where A is the bidentate ligand oxalate (C2O4) and B is Cl).
- **Isomerism**: This complex can also exhibit cis and trans isomerism.

4. **Analyze the Third Complex**:
- **Complex**: `[Fe(H2O)4(OH)2]^(+)`
- **Type**: This is an MA4B2 type complex (where A is H2O and B is OH).
- **Isomerism**: This complex can show cis and trans isomerism as well.

5. **Analyze the Fourth Complex**:
- **Complex**: `[Fe(NH3)2(CN)4]^-`
- **Type**: This is also an MA4B2 type complex (where A is NH3 and B is CN).
- **Isomerism**: This complex can exhibit cis and trans isomerism.

6. **Analyze the Fifth Complex**:
- **Complex**: `[Co(NH2-CH2-CH2-NH2)2(NH3)Cl]^(2+)`
- **Type**: This is a MA2BC type complex (where A is the bidentate ligand ethylenediamine, B is NH3, and C is Cl).
- **Isomerism**: This complex can also show cis and trans isomerism.

### Conclusion:
All five complex ions can exhibit cis-trans isomerism due to their respective ligand arrangements.

### Final Answer:
All the given complex ions show cis-trans isomerism.