Consider the following statements (A)–(D), each with one or two blanks.
(A) Bears go into ____(1)____ during winter to ____(2)____ cold weather
(B) A conical age pyramid with a broad base represents ____(3)____ human population
(C) A wasp pollinating a fig flower is an example of ____(4)____
(D) An area with high levels of species richness is known as ____(5)____
Which one of the following options gives the correct fill ups for the respective blank numbers from (1) to (5) in the statements?

(1) and (2): bears go into hibernation (winter sleep) during winter to escape the cold weather. Aestivation is summer sleep, used to avoid heat and desiccation.
(3): a conical (triangular) age pyramid with a broad base has a large pre-reproductive group, so it represents an expanding (growing) population; a stable population has a bell-shaped pyramid.
(4): the fig and its pollinating wasp both benefit (the wasp gets a site for egg laying and food for its larvae, the fig gets pollinated), so this is mutualism, not commensalism.
(5): an area with a high level of species richness and endemism is called a biodiversity hot spot.
The only option in which every fill-up is correct is (1) – hibernation, (2) – escape, (3) – expanding, (5) – hot spot.