To determine the class of an IP address, we need to look at the first few bits of the address.
In this case, the first octet (8 bits) of the IP address is "10011010".
By looking at the range of values for each class, we can determine the class based on the value of the first octet:
Class A: 0.0.0.0 to 127.255.255.255
Class B: 128.0.0.0 to 191.255.255.255
Class C: 192.0.0.0 to 223.255.255.255
Class D: 224.0.0.0 to 239.255.255.255
Class E: 240.0.0.0 to 255.255.255.255 (reserved for experimental use)
In this case, the value of the first octet is 154, which falls within the range for Class C (192.0.0.0 to 223.255.255.255).
Therefore, the class of the given IP address is Class C.
The correct answer is C.