The correct answer is B : Pascal
A pascal is a pressure of one newton per square metre, or, in SI base units, one kilogram per metre per second squared.The pascal (pronounced pass-KAL and abbreviated Pa) is the unit of pressure or stress in the International System of Units (SI). It is named after the scientist Blaise Pascal. One pascal is equivalent to one newton (1 N) of force applied over an area of one meter squared (1 m2). That is, 1 Pa = 1 N · m-2.
To convert a pascal measurement to a kilogram per square meter measurement, multiply the pressure by the conversion ratio. The pressure in kilograms per square meter is equal to the pascals multiplied by 0.101972.A pascal is a pressure of one newton per square metre, or, in SI base units, one kilogram per metre per second squared.
Pascal (Pa), unit of pressure and stress in the metre-kilogram-second system (the International System of Units [SI]). It was named in honour of the French mathematician-physicist Blaise Pascal . A pascal is a pressure of one newton per square metre, or, in SI base units, one kilogram per metre per second squared. This unit is inconveniently small for many purposes, and the kilopascal (kPa) of 1,000 newtons per square metre is more commonly used. For example, standard atmospheric pressure (or 1 atm) is defined as 101.325 kPa. The millibar, a unit of air pressure often used in meteorology, is equal to 100 Pa. (For comparison, one pound per square inch equals 6.895 kPa.)
Blaise Pascal (1623–1662) was a French mathematician, physicist and philosopher. He developed the modern theory of probability. He also formulated the concept of pressure (between 1646 and 1648) and showed that the pressure in a fluid is transmitted through the fluid in all directions (i.e. Pascal's law).