In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.

Proteins are providers of energy in an emergency, (a) and are primarily used as building blocking (b) for growth and repair of many body tissues. (c) No error (d)

A

a

B

b

C

c

D

d