The correct answer is 120/80 mmHg. This is considered the normal range for blood pressure in adults. Blood pressure is measured in millimeters of mercury (mmHg) and is expressed as two numbers: the top number (systolic pressure) measures the pressure in the arteries when the heart beats, while the bottom number (diastolic pressure) measures the pressure in the arteries when the heart is at rest between beats.

Pneumonia is an infection that inflames air sacs in one or both lungs, and it can be caused by various types of bacteria, including Streptococcus pneumoniae, Haemophilus influenzae, and Legionella pneumophila, among others.

List of SI units:

Length – meter (m)

Time – second (s)

Amount of substance – mole (mole)

Electric current – ampere (A)

Temperature – kelvin (K)

Luminous intensity – candela (cd)

Mass – kilogram (kg)