Directions: 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'.
Instead criticizing (A) / why don't (B) / you help (C) / with the presentation. (D) / No error (E)
» Explain it
In part A, 'instead' must be replaced with prepositional phrase 'instead of' which means 'in place of'. 

Hence, option A is correct.

The company's new project (A) / cannot be launched (B) / unless the approval (C) / of the board. (D) / No error (E) 
» Explain it
In part C, the use of the definite article 'the' is erroneous as 'approval' is an uncountable noun and uncountable nouns take 'the' when used in a particular sense (especially when qualified by an adjective or adjectival phrase or clause); as,

'Would you pass me the sugar? (= the sugar on the table)'
'The wisdom of Solomon is great.'
'I can't forget the kindness with which he treated me.'

In the given sentence, 'approval' is not specified, nor is it qualified by any adjective. We, therefore, will omit 'the' before 'approval'. 

Hence, option C is correct.

He has been assigned (A) / with that team (B) / because he is  (C) / well qualified and experienced. (D) / No error (E) 
» Explain it
The verb 'Assign' is followed by the preposition 'to' so in part B, the preposition 'with' must be replaced with 'to'. 

If someone is assigned to a particular place, group, or person, they are sent there, usually in order to work at that place or for that person. 

Ex. I was assigned to Troop A of the 10th Cavalry.

Hence, optioin B is correct.

The manager has (A) / confidence in the engineer (B) / ability to (C) /design the new software. (D) / No error (E)
» Explain it
In the part B, the word 'engineer' has to be in possessive case as in the sentence it is giving the context of 'ability of the engineer'.

So, the correct formation will be - 'The manager has confidence in the engineer's ability  to design the new software.'

Hence, option B is correct.
The cashier cannot (A) / give no explanation (B) / for the money (C) / that is missing. (D) / No error (E)
» Explain it
Two negatives - 'cannot & no explanation' cannot go together in a single sentence. The correct formation will be - 'The cashier cannot give any explanation for the money that is missing.'

Hence, option B is correct.