___________ trained by sailors to reach the coast safely were called ‘Dishakak’. 

Correct option is D) Canara Coast

B) 1 – c, 2 – b, 3 – d, 4 – a

(A) Creating, (D) Managing

(B) Storing, (C) Retrieving

(B) Fields, (E) Columns

(A) Retrieve, (C) Manipulate, (D) Update Information

(A) Network, (B) Hierarchical, (C) Relational

(C) One-to-One, (D) One-to-Many (or Manyto-One), (E) Many-to-Many

(B) Storing, (C) Manipulating, (D) Retrieving

C) the compass and the astrolabe