Read the passage given below and answer the questions by choosing the correct /most appropriate options.
On an ordinary workday, 27-year-old Pramila Bariki hikes up step slopes across fields, through ankle-deep rivulets, often walking upto 14 km. She gets a ride until the road is motorable, from which point she has to walk. Her job? She does out healthcare advice to mothers and children in the remotest hamlets intheAraku valley of Andhra Pradesh.
Now, heavily pregnant Pramila has had to slow down delegating tasks to Duridi, Neeraj, Sunita and others. It's they who now walk through forests and climb up mountains visiting families to identify pregnant women and conduct basic tests for diabetes and anaemia and connect them with a primary health centre whenever necessary.
These young tribal women are all trained auxiliary nurses, part of an experimental health project in Araku that aims to end preventable deaths during child birth or infancy.
The Araku valley is home to several nomadic tribes who live in small clusters of 70 to 150 homes situated in rugged and inaccessible terrain. Until a few years ago, these communities were unaware of government, healthcare policies. The death of a child or a woman during pregancy or child birth was common and they were resigned to it.
Today 38 women like Pramila drawn from these tribes, have broken social and cultural barries to train as nurses and provide medical care of 1179 hamlets across the Araku, Paderu and Chintapalli mandals. Since they are from these communities they have been able create trust in the families and neighbours about formal healthcare. As a result these remote villages have now had the first child birth in hospital, the first delivery by a trained nurse and the first mother not a lose a child.
The nurses advise women on hygiene and nutrition and convince them to visit the nearest health centre for further check -ups.
Which part of the following sentence contains an error?
The job of the auxiliary nurses is physicaly challenging because they

Options

A. are not liked by the people whom they want to help
B. have to face opposition from the local traditional healers
C. are not paid any renumeration for their work
D. have to walk through forests and up mountains to reach out to people

Explanation

As stated in the passage, the job of these 38 women nurses belonging to several nomadic tribes of Araku valley in Andhra Pradesh is very challenging because they have to walk through forests and up mountains to reach out to people. Sometimes they walk as much as 14 km in a day.