Read the sentence given below to find out if it contains any error. The error, if any, will be in one part of the sentence. If the sentence is error free, select No error or option 5. Ignore error of punctuation if any.

The massive melting of glaciers as (A)/ a result of global heating has (B)/ caused mark shifts in the Earth’s (C)/ axis of rotation since the 1990s.(D)/ No error (E)