State the most suitable data type for the variables averagePace and statusMessage used in the algorithm below.

userName ← USERINPUT
dailySteps ← USERINPUT
averagePace ← 0.0
statusMessage ← "Activity goal achieved!"
warningMessage ← "Increase activity level"
IF dailySteps < 10000 THEN
    IF dailySteps > 5000 THEN
        averagePace ← 4.5
        OUTPUT averagePace
    ELSE
        OUTPUT warningMessage
    ENDIF
ELSE
    OUTPUT statusMessage
ENDIF