Read the passage given below and answer the questions that follows
Our body is a wondrous mechanism and when subjected to unusual stress over a period of time, it adapts itself to deal more effectively with that stress. Therefore, when you exert your muscles against resistance, they are forced to adapt and deal with this extraordinary workload. This is the principle of weight training. Strands of muscle fibres become thicker and stronger in response to the demands placed on them. One of the great merits of weight training is the strength of your heart. During weight training, your heart is forced to beat faster and stronger in order to pump sufficient blood to the muscles being worked. In time, you heart, like your body, will adapt to this extra-workload by becoming stronger and more efficient. Since, your body needs a given amount of blood to perform its daily tasks, your heart will now need fewer beats to pump the same quantity of blood. Sounds good? There's more. Your entire circulatory system is given a thorough workout every time you exercise, which increases its overall efficiency. Even teh neural paths from your brain's command centres to each individual muscle become more effective, enabling easier recruitment of muscle fibres for carrying out physical tasks. In essence, your body becomes a well-oiled and finely-tuned piece of machinery, whirring along without any breakdown. In today's stress-filled world, you need all the help you can get.
Weight training makes the muscless

Options

A. resist workload
B. thicker and stronger
C. become stranded
D. become intense

Answer

B

Explanation

The answer can be inferred from the last sentence of the first paragraph. Weight training makes the muscls thicker and stronger.