Good evening please explain this thanks in advance

Dear student,
The most appropriate answer would be option D
This is because, on following the key , when cells lack cell wall, they're present in animal cells. The tissue that lines fallopian tube is similar to the one that lines the bronchioles , thus R is correct. 
IF cells contain cell wall, they belong to plant cells , since grit of guava is made of a single type of cell - sclereids , thus option U is also correct.

Regards 

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