$C_4$ plants are more efficient in photosynthesis than $C_3$ plants due to

Peroxisomes are associated with ..........

Photorespiration takes place in which of the following cell organelles?

Photorespiration is observed during which of the following processes?

Given below are two statements:
Statement $I$: In $C_3$ plants,some $O_2$ binds to $RuBisCO$,hence $CO_2$ fixation is decreased.
Statement $II$: In $C_4$ plants,mesophyll cells show very little photorespiration while bundle sheath cells do not show photorespiration.
In the light of the above statements,choose the correct answer from the options given below:

$RuBP + O_2 = ?$ (Photorespiration)