The corner of the cells of collenchyma tissue in plant are thickened due to deposition of A) Lignin and suberin B) Suberin and cutin
C) Cellulose and pectin D) Chitin and lignin

C) Cellulose and pectin.

Hope this helps :)

i believe the correct answer from the choices listed above is the first option. the scientists need to look at the   validity of data, claims, hypotheses, and observations before  developing an argument. they base their arguments on facts that are present and they make sure they have proofs. 

explanation:

surface modification is a versatile tool and has been widely used in material science and engineering that has significantly facilitated the study and characterization of complex materials. at  matexcel, experienced experts in surface science can offer tailored efforts to meet the specific needs from our clients.