Choose the correct option to replace the quotation part of each sentence. Often visible as smog, 'ozone is formed in the atmosphere from' hydrocarbons and nitrogen oxides, two major pollutants emitted by automobiles, react with sunlight.

If Ram lives on the first floor, then Sham lives on the second. Sham does live on the second floor. Therefore

Choose the correct sentence.

Correct the following sentences:

(a) I wish I can get the chance of Admission in 'Bangladesh University of Textile!'

(b) By and by he became rich..

(c) Fertilizers are used primarily to enrich the soil and increasing yield.

Identify the correct sentence.