Its a. So its true. Good luck!
Hope this helps !!!
Explanation:
Blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium. The pulmonary vein empties oxygen-rich blood, from the lungs into the left atrium.
Nonprofit or voluntary agencies receive their funding from various sources:
1. Government grants - Most governments in the world offer funding for various nonprofit organisations. For example, civilian Search and Rescue organisations often receive government grants to buy equipment required.
2. Fundraising - Nonprofit or volunteer agencies often hold fundraising activities or drives. For example, the national blood bank holds drives where they encourage people to donate blood.
Free health care for the elderly is often provided by a nonprofit organisation. I've already mentioned the national blood bank. Another voluntary agency is the K9 (dog) Search and Rescue teams around the world. They provide their own dogs and training and are willing to travel to any country in the world to help in disaster situations, for example, the devastating earthquakes in Nepal.