Which of the two adrenocortical layers, zona glomerulosa and zona reticularis lies outside enveloping the other? 

Assertion : Our body secretes adrenaline in intense cold.
Reason : Adrenaline raises metabolic rate

Small amount of …$A$… steroids are also secreted by …$B$…. Cortex which play a role in the growth of axial hair, pubic hair and facial hair during puberty.

Choose the correct combination for $A$ and $B$

$I.$ The adrenal cortex secretes many hormones called corticoids     $II.$ Corticoids involved in carbohydrate metabolism are called glucocorticoids      $III.$ Cortisol is main glucocorticoids   $IV.$ Aldosterone is the main mineralocorticoids

Select the correct combination from the given options

Fight­or­flight reactions cause activation of