I’m pretty sure that your answer would be A
Answer:
The legal obligation to safeguard others from harm while they are in your care, using your services, or exposed to your activities
Explanation:
For example: The school's duty of care towards its pupils
The letter states that the city council has a duty of care to road users to ensure that crossings are properly controlled.
The best answer from the choices given would be option A. The luminol test is capable of detecting bloodstains diluted up to 100,000 times. However, the correct value here is 300,000. The luminol test can still read up to that value. Luminol test has found some great application in crime scene investigations. It is able to find traces of blood even if someone has cleaned or removed stains.
Smallpox<span> vaccine, the first successful vaccine to be developed, was introduced by Edward Jenner in 1796. He followed up his observation that milkmaids who had previously caught </span>cowpox<span> did not later catch </span>smallpox<span> by showing that inoculated</span>cowpox<span> protected against inoculated </span>smallpox<span>.</span>
