tolong dijawab menggunakan langkah , terimakasih sudah membantu ^^

Mata berakomodasi maksimum
fob = 5 mm = 0,5 cm, fok = 2,5 cm
d = 12,5 cm
sn = 25 cm

s'ok = -sn
1 / fok = 1 / sok + 1 / sok'
sok = s'ok fok / (s'ok - fok)
       = (-25 cm)(2,5 cm) / (-25 cm - 2,5 cm) = 25/11 cm

d = s'ob + sok
s'ob = d - dok
       = 12,5 cm - 25/11 cm = 225/22 cm

1 / fob = 1 / sob + 1 / s'ob
sob = s'ob fob / (s'ob - fob)
       = (225/22 cm)(1/2 cm) / (225/22 cm - 1/2 cm) = 225/428 cm

Mob = -s'ob / sob
        = (225/22 cm) / (225/428 cm) = -214/11

Mok = sn/fok + 1
        = (25 cm) / (2,5 cm) + 1 = 11

M = Mob Mok
    = (-214/11)(11)
    = -214 ← Bayangan akhir terbalik
Jawaban: B.