D

Then for second, we use multimeter to test the D.C. resistance of the thermocouple. we got 6.1 ohms and 7.5 ohms for the ones that are showing yellow and red, while the other ones that are not showing give us value of 8.7 ohms, 8.5 ohms, 10.3 ohms etc., and the resistance of the new ones lie within the range 5.6 ohm to 8.1 ohm.

Please i need your assistance on next step to take to solve this problem.