Explanation :
Degree Celsius and degree Fahrenheit are two units of measuring temperature.
The correct formula used to convert degrees Celsius to degrees Fahrenheit is :
[tex]^{\circ}F=\frac{9}{5}\times\ ^{\circ}C+32[/tex]
Where,
[tex]^0F[/tex] is temperature in Fahrenheit
[tex]^0C[/tex] is temperature in Celsius
Hence, the correct option is (a).