By interchanging which two signs the equation will be correct?
$$5 - 9 + 16 \times 91 \div 13 = -98$$

Given Equation : 

$$5 - 9 + 16 \times 91 \div 13 = -98$$

We have to check option wise and solve it as per rule of BODMAS : 

Option A : $$\div and -$$

Changed Equation : $$5\div9+16\times91-13=-98$$

$$\frac{5}{9}+1456-13=-98$$

$$\frac{5}{9}+1443\ne\ -98$$

Option A is incorrect.

Option B : $$+ and \div$$

Changed Equation : $$5-9\div16\times91+13=-98$$

$$\frac{9}{16}\times91\ne\ -80$$

Option B is incorrect.

Option C : $$\times and -$$

Changed Equation : $$5\times\ 9+16-91\div13=-98$$

$$45+16-7=-98$$

$$54\ne\ -98$$

Option C is incorrect.

Option D : $$+ and -$$

Changed Equation : $$5+9-16\times91\div13=-98$$

$$5+9-16\times7=-98$$

$$5+9-112=-98$$

$$-98=-98$$

Hence, Option D is incorrect.