1. (10 marks) Given the following relation schema T, with attribute A as the primary key, answer the questions below. I Relation A B D al a2 a3 a4 61 b1 b2 b2 c2 c2 ci c3 di di d1 d1 () What functional dependencies FD can you see exist between the attributes of this relation above? (ii) What update, (ii) delete and (iv) insertion anomalies may or not be present in this T relation above. Explain with specific examples using FDs, keys and the specific attributes affected in this database. Que 1 (2.5 marks for each of i to iv for a total of 10 marks) (1) FDs (2.5 marks) (ii) Update anomalies (2.5 marks) (iii) Delete anomalies (2.5 marks) (iv) Insertion anomalies (2.5 marks)