You can also concatenate integers. For example: $5\mathrm{.}5=55678\mathrm{.}910=678910$

Question: What is the value of $1\mathrm{.}2+3\mathrm{.}4?$

A$.0$

B$.4\mathrm{.}6$

C$.46$

D$.154$

E$.1234$

F$.$ Not allowed $-$ illegal syntax