Rani has got two sisters and a brother. _____ sisters are married.
ANeither of
BNone of
CEither of
DBoth
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Comprehension:
In the following passage, some words have been deleted. Read the passage carefully and select the most appropriate option to fill in each blank.
Deoxyribonucleic acid (DNA) is a very special molecule. It (1) ................................ as the code for all life on Earth, holding the cellular instructions to (2)............................. everything from a beetle to a human. Because DNA is (3)............................. species, it's like a product barcode in a supermarket. As animals and plants live their lives, they (4)................................. their DNA into their environment (5)................................. to each fragments of dead skin, hair, saliva, scat, leaves or pollen. These traces make up environmental DNA. There's enough DNA in water and even air to tell species apart. Select the most appropriate option to fill in blank no. 1.