निम्नलिखित प्रत्येक

Parts of the given sentence have been given as options. One of them contains a grammatical error. Select the option that has the error.

Identify the segment in the sentence that contains a grammatical error.

There were floral decorations from display in the city.

Did you knew that the radio is ranked number two in the list of ‘101’ Gadgets that changed the World according to History Channel?

All the members (a)/ of the Board are kindly(b)/ requested to appear in the next meeting. (c)/ No Error (d)

If I was knowing (A)/ why he was absent, (B)/ I would have informed you. (C)/ No error (D) 

None of his sons is mature enough to adept to new circumstances. 

Part of what a man learns will measurable (1)/ as specific knowledge and skills, while (2)/ another part involves changes. (3)/ No error(4)