Which symbol must all formula begin with?

Options B which is equal..............

option B                            .

OPTION   b

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thanks for invition ,,,,,,,,,,

my choice is option B

generally we use equal sign for all formulas

All the formula start by symbol b) Equal9

agree with answers >>>>>>>>>>>>><<<<<<<<<<<<<<<<<<>>>>>>>>>>>>> B

agree with all experts answer >>>>>>>>>>>

second one/////////////////////////////

We usually use "=" equal symbol to begin equation in most of our daily softwares.

My answer is Option B. because all formulas in MS office should start with equal to sign