Who discovered the biosynthetic phase of photosynthesis?

In the condensed schematic representation of the dark reaction of photosynthesis given below,steps are indicated by alphabets. Select the option where the alphabets are correctly identified.

The enzymatic reactions incorporate $CO_2$ into the plants leading to the synthesis of sugar in:

In $C_3$ plants,the first stable product of the Calvin cycle is:

Six turns of the Calvin cycle are required to generate one mole of glucose. Explain.

The carbon dioxide acceptor in Calvin cycle ($C_3$ plants) is: