Question

Q.No.4 Big data has been useful in identifying and tracking the exact location of a place ( Identify the correct tense.)

a) Simple present tense
b) Present perfect tense
c) present continuous tense​

Answer 1

Answer:

Big data has been useful in identifying and tracking the exact location of a place is present perfect tense

Answer 2

Answer:

$\tt \boxed {\purple{hey}} \tt \boxed {\green{...friend}}$

option b is correct