One of the common symptoms observed in people infected with dengue fever is ?
(a) Significant decrease in RBCs count
(b) Significant decrease in WBCs count
(c) Significant decrease in platelets count
(d) Significant increase in platelets count

Option (c) Significant decrease in platelets count

The low platelet count leads to life threating condition and us one of the most common symptoms observed ub people infected with dengue fever whereas, other options are not the symptoms of dengue fever.