A−5,B−4,C−1,D−3,E−2
A−1,B−2,C−3,D−4,E−5
A−2,B−3,C−1,D−3,E−4
A−4,B−5,C−2,D−1,E−3
Correct option is A.
A−5,B−4,C−1,D−3,E−2
(A)Agrostology - (5)Grass -Agrostology is the scientific study of the grasses (the family Poaceae, or Gramineae).Agrostology has importance in the maintenance of wild and grazed grasslands, agriculture (crop plants such as rice, maize, sugarcane, and wheat are grasses, and many types of animal fodder are grasses), urban and environmental horticulture, turfgrass management and sod production, ecology, and conservation
(B)Smallest flowering plant - (4)Wolffia -The world's smallest flowering plant is the watermeal or Wolffia globosa. It is the smallest genus of the aquatic plants known as duckweeds, which are part of the family Lemnaceae
(C)Tectonic - (1)Earth -Tectonics is the process that controls the structure and properties of the Earth's crust and its evolution through time. Hence the term tectonic refers to the Earth
(D)Ecesis - (3)Migration -ecesis is the process by which a plant or animal becomes established in a new habitat. Hence the term Ecesis is related to the migration of plants
(E)Euphanix - (2)Genetic engineering - Euphenix is a branch of biotechnology which deals with human welfare. Hence Euphenix is related to genetic engineering.
So, the correct answer is 'A-5, B-4.C-1,D-3,E-2'.