Questions

Raziya al-Din, popularly known as Razia Sultana, was the first woman ruler of India. She is a ruler of the Delhi Sultanate in the northern part of the Indian subcontinent. She is notable for being the first female Muslim ruler of South Asia.

Lysosome is found in nearly all types of eukaryotic cells (cells with a clearly defined nucleus) and is responsible for the digestion of macromolecules, old cell parts, and microorganisms. Each lysosome is surrounded by a membrane that maintains an acidic environment within the interior via a proton pump. Lysosomes contain a wide variety of hydrolytic enzymes (acid hydrolases) that break down macromolecules such as nucleic acids, proteins, and polysaccharides. So, they are known as storehouse of digestive enzymes.

Error is in third part. By writing ‘who’ in the second part it has already been made clear that the sentence talks about ‘a man’. The use of ‘he’ becomes redundant or repetitive. By omitting ‘he’ the sentence becomes grammatically correct.