Read the passage given below and answer the questions that follow by choosing the correct/most appropriate options: 1. Chennai is on alert against quack doctors, whom official say vex the city every year during its fever season. The news comes as a reminder of the epidemic of quackery in India: unqualified, unlicensed practitioners account for a staggering proportion of the country's healthcare workforce. 2. In the past decade, an estimated 1,500 quack doctors have been booked in the Tamil Nadu state capital but official say that despite making arrests, it is difficult to effectively crack down on the phenomenon. The main reason is lax penalties: “They get bail or pay fine and restart practice”, said Dr K. Kolandaisamy, director of public health in the city. “The only way to stop this is to book quacks for attempt to murder or murder charges,” adds Dr T. N. Ravi Shankar, former head of the Tamil Nadu chapter of the Indian Medical Association (IMA). 3. Quackery is not a problem limited to Chennai, or to Tamil Nadu where 50,000 quack doctors operate according to the IMA. It is endemic throughout India. 4. At the national level, 25 percent of the healthcare workforce in India lacks the qualifications required: a network of quacks, “traditional birth attendants, faith healers, snakebite curers and bonesetters”. Between one and 2.5 million people practise numerous other complications. One million Indians lose their lives to subpar healthcare every year, driven in part by a sizeable number of workers without training or qualifications. Often, these quack doctors are the only immediately available help for a significant proportion of India's population such as those in areas underserved by medical professionals. With a significant shortage of doctors, it is clear that the quackery epidemic did not originate in a vacuum – and as officials in Chennai point out, they can win over the trust of their patients. Question: Which part of the following sentence contains an error? I will not go unless you do not come. (a) I will not | (b) go unless | (c) you do not | (d) come

1. (a)
2. (b)
3. (c)
4. (d)