Match the type of bacteria listed in column I with their activity given in column II. Choose the correct combination of alphabets of the two columns
`|{:(,underset("(Types of bacterial)")("Column-I"),,underset("(Activity)")("Column-II")),(A.,"Steptomyces",p.,"Food poisoning"),(B.,"Rhizobium",q.,"Source of antibiotics"),(C.,"Nitrosomonas",r.,"Nirogen fixation"),(D.,"Acetobacter",s.,"Nitrification"),(,,t.,"Vinegar synthesis"):}|`

Options

A. a - s, b-t, c- p,d-r
B. a- t, b- p, c-r,d-s
C. a-q, b-r, c-p, d-t
D. a-q,b-r,c-s,d-t.

Answer

To solve the problem of matching the types of bacteria with their respective activities, we will analyze each bacterium in Column I and identify its corresponding activity in Column II.

### Step-by-Step Solution:

1. **Identify the first bacterium: Streptomyces**
- **Activity:** Streptomyces is known for being a major source of antibiotics.
- **Match:** Therefore, Streptomyces (A) corresponds to Source of antibiotics (q).

2. **Identify the second bacterium: Rhizobium**
- **Activity:** Rhizobium is a nitrogen-fixing bacterium that forms a symbiotic relationship with leguminous plants.
- **Match:** Thus, Rhizobium (B) corresponds to Nitrogen fixation (r).

3. **Identify the third bacterium: Nitrosomonas**
- **Activity:** Nitrosomonas is involved in the process of nitrification, where ammonia is oxidized to nitrites and then to nitrates.
- **Match:** Hence, Nitrosomonas (C) corresponds to Nitrification (s).

4. **Identify the fourth bacterium: Acetobacter**
- **Activity:** Acetobacter is known for converting ethanol into acetic acid, which is used in vinegar production.
- **Match:** Therefore, Acetobacter (D) corresponds to Vinegar synthesis (t).

5. **Summary of Matches:**
- A - q (Streptomyces - Source of antibiotics)
- B - r (Rhizobium - Nitrogen fixation)
- C - s (Nitrosomonas - Nitrification)
- D - t (Acetobacter - Vinegar synthesis)

### Final Matching:
- A: q
- B: r
- C: s
- D: t