Correct Answer: Option D

Explanation

The clumping of cells such as bacteria or red blood cells in the presence of an antibody or complement.

During blood transfusions, the antibodies react with the transfused blood group(if its of different blood group), the erythrocytes clump up and stick together causing them to agglutinate

There is an explanation video available below.

• what does productivity of grass means and what are they? Answer this

  1 Answers   ·   Agricultural Science   ·   14 hours ago
• what are the recommend text in Economics? Answer this

  1 Answers   ·   Economics   ·   8 hours ago
• a compund microscope by lens of focal length 1cm and 5cm.an object placed 1.2cm from the objective lens if a... Answer this

  1 Answers   ·   Physics   ·   1 day ago