Time left $0$:$09$:$12$

Using the error correcting code shown below, decode the following received bitstream: $1001$

$\backslash$table$[[$Data block,Codeword$],[00,0000],[01,0001],[10,0011],[00,0111]]$

a$.$ None

b$.00$

c$.10$

d$.01$

e$.11$