In the CGS system, the unit of force is called a dyne. To understand how the dyne relates to other units of force, we can analyze the options.

Option 1: 103 g cm/s2. This option represents a force of 103 grams multiplied by centimeter per square second. However, this is not equal to a dyne as 1 dyne is equivalent to 10-5 kg m/s2, not 103 g cm/s2.

Option 2: 10-3 g cm/s2. This option represents a force of 10-3 grams multiplied by centimeter per square second. However, this is not equal to a dyne as 1 dyne is equivalent to 10-5 kg m/s2, not 10-3 g cm/s2.

Option 3: 105 kg m/s2. This option represents a force of 105 kilograms multiplied by meter per square second. However, this is not equal to a dyne as 1 dyne is equivalent to 10-5 kg m/s2, not 105 kg m/s2.

Option 4: 10-5 kg m/s2. This option represents a force of 10-5 kilograms multiplied by meter