Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the option that best fits each of the numbered...

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the option that best fits each of the numbered blanks from 36 to 40.

Polar tourism has surged in recent years, attracting visitors to the breathtaking Arctic and Antarctic landscapes. Surprisingly, this surge is accompanied by the responsibility for protecting fragile ecosystems, which heavily falls on the tourists, (36) ______. These remote regions offer unparalleled beauty and rare wildlife encounters but remain highly vulnerable to human impact; even the slightest disruptions, like environmental contamination or overexposure to human activity, (37) ______.

Witnessing the pristine icebergs and encountering rare wildlife, visitors’ ecological footprint impacts delicate natural processes, so they must remain conscious of their actions to minimize disruption. (38) ______. Many tour operators follow guidelines from organizations like the International Association of Antarctica Tour Operators (IAATO) to promote sustainable practices. However, climate change accelerates ice melt, and increasing tourist activity adds stress to already fragile ecosystems.

(39) ______. Sustainable tourism initiatives, such as carbon offset programs and eco-friendly vessel technologies, can help mitigate damage. Tourists must also adhere to conservation guidelines and support responsible travel companies. (40) ______ as a rare privilege, simultaneously advancing comprehensive global environmental consciousness and safeguarding fragile ecosystems from exploitation.

(Adapted from ScienceDirect)

Question 36:
A. whose direct interaction with these environments necessitates careful conservation efforts
B. every one of whom engages with these habitats entails careful oversight and protection
C. among which careful conservation efforts are necessary due to their hands-on interactions
D. those with direct interaction with these environments must make careful conservation efforts