Match the following acids with their respective sources:
| Acid | Source |
| A-Maleic acid | 1-Spinach |
| B-Tartaric acid | 2-Lemons or oranges. |
| C-Citric acid | 3-Grapes |
| D-Oxalic acid | 4-Apples |
Select the correct answer from the codes given below.
1
A-1, B-4, C-3, D-2
2
A-4, B-2, C-3, D-1
3
A-1, B-3, C-2, D-4
4
A-4, B-3, C-2, D-1